| acneiform | (adjective) resembling acne | - |
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| aeriform | (adjective) resembling air or having the form of air | Synonyms: airlike |
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| (adjective) characterized by lightness and insubstantiality; as impalpable or intangible as air | Synonyms: aerial, aery, airy, ethereal |
| affirm | (verb) establish or strengthen as with new evidence or facts | Synonyms: confirm, corroborate, substantiate, support, sustain |
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| (verb) to declare or affirm solemnly and formally as true | Synonyms: assert, aver, avow, swan, swear, verify |
| (verb) say yes to | - |
| alarm | (noun) a device that signals the occurrence of some undesirable event | Synonyms: alarm system, warning device |
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| (noun) a clock that wakes a sleeper at some preset time | Synonyms: alarm clock |
| (noun) an automatic signal (usually a sound) warning of danger | Synonyms: alarum, alert, warning signal |
| (noun) fear resulting from the awareness of danger | Synonyms: consternation, dismay |
| (verb) warn or arouse to a sense of danger or call to a state of preparedness | Synonyms: alert |
| (verb) fill with apprehension or alarm; cause to be unpleasantly surprised | Synonyms: appal, appall, dismay, horrify |
| aliform | (adjective) having or resembling wings | Synonyms: alar, alary, wing-shaped |
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| amygdaliform | (adjective) shaped like an almond | Synonyms: almond-shaped, amygdaloid, amygdaloidal |
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| angiosperm | (noun) plants having seeds in a closed ovary | Synonyms: flowering plant |
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| angleworm | (noun) terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers | Synonyms: crawler, dew worm, earthworm, fishing worm, fishworm, nightcrawler, nightwalker, red worm, wiggler |
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| apoplectiform | (adjective) resembling apoplexy | Synonyms: apoplectoid |
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| arboriform | (adjective) resembling a tree in form and branching structure | Synonyms: arboreal, arboreous, arborescent, arboresque, dendriform, dendroid, dendroidal, tree-shaped, treelike |
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| arciform | (adjective) forming or resembling an arch | Synonyms: arced, arched, arching, arcuate, bowed |
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| arm | (noun) the part of a garment that is attached at the armhole and that provides a cloth covering for the arm | Synonyms: sleeve |
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| (noun) any instrument or instrumentality used in fighting or hunting | Synonyms: weapon, weapon system |
| (noun) the part of an armchair or sofa that supports the elbow and forearm of a seated person | - |
| (noun) any projection that is thought to resemble a human arm | Synonyms: branch, limb |
| (noun) a human limb; technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limb | - |
| (noun) a division of some larger or more complex organization | Synonyms: branch, subdivision |
| (verb) prepare oneself for a military confrontation | Synonyms: build up, fortify, gird |
| (verb) supply with arms | - |
| armyworm | (noun) moth whose destructive larvae travel in multitudes | Synonyms: Pseudaletia unipuncta |
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| (noun) noctuid moth larvae that travel in multitudes destroying especially grass and grain | Synonyms: army worm, Pseudaletia unipuncta |
| (noun) larva of fungus gnat that feed on cereals and other grains; they march in large companies in regular order when the food is exhausted | - |
| arrowworm | (noun) any worm of the Chaetognatha; transparent marine worm with horizontal lateral and caudal fins and a row of movable curved spines at each side of the mouth | Synonyms: chaetognath |
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| auriform | (adjective) having a shape resembling an ear | Synonyms: ear-like, ear-shaped |
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| autoalarm | (noun) a radio receiving device used on ships that rings an alarm bell when a distress signal is received. | Synonyms: auto-alarm |
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| bacilliform | (adjective) formed like a bacillus | Synonyms: bacillar, bacillary, baculiform, rod-shaped |
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| baculiform | (adjective) formed like a bacillus | Synonyms: bacillar, bacillary, bacilliform, rod-shaped |
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| barm | (noun) a commercial leavening agent containing yeast cells; used to raise the dough in making bread and for fermenting beer or whiskey | Synonyms: yeast |
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| barnstorm | (verb) tour the country making political speeches, giving lectures, or presenting plays | - |
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| (verb) appear at county fairs and carnivals as a stunt flier and parachute jumper | - |
| becharm | (verb) attract; cause to be enamored | Synonyms: beguile, bewitch, captivate, capture, catch, charm, enamor, enamour, enchant, entrance, fascinate, trance |
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| (verb) control by magic spells, as by practicing witchcraft | Synonyms: charm |
| berm | (noun) a narrow edge of land (usually unpaved) along the side of a road | Synonyms: shoulder |
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| (noun) a narrow ledge or shelf typically at the top or bottom of a slope | - |
| biform | (adjective) having or combining two forms | - |
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| bioarm | (noun) any weapon usable in biological warfare | Synonyms: biological weapon, bioweapon |
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| blastoderm | (noun) a layer of cells on the inside of the blastula | Synonyms: blastodisc, germinal area, germinal disc |
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| blindworm | (noun) small burrowing legless European lizard with tiny eyes; popularly believed to be blind | Synonyms: Anguis fragilis, slowworm |
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| (noun) any of the small slender limbless burrowing wormlike amphibians of the order Gymnophiona; inhabit moist soil in tropical regions | Synonyms: caecilian |
| bloodworm | (noun) a segmented marine worm with bright red body; often used for bait | - |
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| bollworm | (noun) any of various moth caterpillars that destroy cotton bolls | - |
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| bookworm | (noun) someone who spends a great deal of time reading | - |
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| (noun) a person who pays more attention to formal rules and book learning than they merit | Synonyms: pedant, scholastic |
| botuliform | (adjective) long with rounded ends | - |
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| brainstorm | (noun) the clear (and often sudden) understanding of a complex situation | Synonyms: brainwave, insight |
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| (verb) try to solve a problem by thinking intensely about it | - |
| bromoform | (noun) colorless liquid haloform CHBr3 | Synonyms: tribromomethane |
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| bursiform | (adjective) shaped like a pouch | Synonyms: pouch-shaped, pouchlike, saclike |
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| cabbageworm | (noun) toxic green larva of a cabbage butterfly | Synonyms: Pieris rapae |
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| caddisworm | (noun) larva of the caddis fly; constructs a case of silk covered with sand or plant debris | Synonyms: strawworm |
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| cairngorm | (noun) a smoky yellow or brown quartz | Synonyms: smoky quartz |
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| calceiform | (adjective) of slipper-shaped blossoms | Synonyms: calceolate |
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| cankerworm | (noun) green caterpillar of a geometrid moth; pest of various fruit and shade trees | - |
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| caseworm | (noun) insect larva that constructs a protective case around its body | - |
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| charm | (noun) something believed to bring good luck | Synonyms: good luck charm |
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| (noun) attractiveness that interests or pleases or stimulates | Synonyms: appeal, appealingness |
| (noun) (physics) one of the six flavors of quark, the third most massive of all quarks | - |
| (noun) a verbal formula believed to have magical force | Synonyms: magic spell, magical spell, spell |
| (verb) induce into action by using one's charm | Synonyms: influence, tempt |
| (verb) protect through supernatural powers or charms | - |
| (verb) attract; cause to be enamored | Synonyms: becharm, beguile, bewitch, captivate, capture, catch, enamor, enamour, enchant, entrance, fascinate, trance |
| (verb) control by magic spells, as by practicing witchcraft | Synonyms: becharm |
| chloroform | (noun) a volatile liquid haloform (CHCl3); formerly used as an anesthetic | Synonyms: trichloromethane |
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| (verb) anesthetize with chloroform | - |
| chordamesoderm | (noun) the area of mesoderm that forms the notochord | Synonyms: chordomesoderm |
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| chordomesoderm | (noun) the area of mesoderm that forms the notochord | Synonyms: chordamesoderm |
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| columniform | (adjective) having the form of a column | Synonyms: columnar, columnlike |
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| confirm | (verb) make more firm | - |
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| (verb) establish or strengthen as with new evidence or facts | Synonyms: affirm, corroborate, substantiate, support, sustain |
| (verb) strengthen or make more firm | Synonyms: reassert |
| (verb) administer the rite of confirmation to | - |
| (verb) support a person for a position | - |
| conform | (verb) adapt or conform oneself to new or different conditions | Synonyms: adapt, adjust |
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| (verb) be similar, be in line with | - |
| cordiform | (adjective) (of a leaf) shaped like a heart | Synonyms: cordate, heart-shaped |
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| corm | (noun) solid swollen underground bulb-shaped stem or stem base and serving as a reproductive structure | - |
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| cruciform | (adjective) shaped like a cross | Synonyms: cruciate |
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| cubiform | (adjective) shaped like a cube | Synonyms: cube-shaped, cubelike, cubical, cuboid, cuboidal |
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| cumuliform | (adjective) shaped like a cumulus cloud | - |
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| cuneiform | (adjective) of or relating to the tarsal bones (or other wedge-shaped bones) | - |
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| (adjective) shaped like a wedge | Synonyms: cuneal, wedge-shaped |
| (noun) an ancient wedge-shaped script used in Mesopotamia and Persia | - |
| cutworm | (noun) North American moth whose larvae feed on young plant stems cutting them off at the ground | - |
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| deform | (verb) become misshapen | - |
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| (verb) alter the shape of (something) by stress | Synonyms: distort, strain |
| (verb) assume a different shape or form | Synonyms: change form, change shape |
| (verb) make formless | - |
| (verb) cause (an object) to assume a crooked or angular form | Synonyms: bend, flex, turn, twist |
| (verb) twist and press out of shape | Synonyms: contort, distort, wring |
| dendriform | (adjective) resembling a tree in form and branching structure | Synonyms: arboreal, arboreous, arborescent, arboresque, arboriform, dendroid, dendroidal, tree-shaped, treelike |
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| disarm | (verb) remove offensive capability from | Synonyms: demilitarise, demilitarize |
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| (verb) take away the weapons from; render harmless | Synonyms: unarm |
| (verb) make less hostile; win over | - |
| disciform | (adjective) having a round or oval shape like a disc | - |
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| dolabriform | (adjective) having the shape of the head of an ax or cleaver | Synonyms: dolabrate |
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| dorm | (noun) a college or university building containing living quarters for students | Synonyms: dormitory, hall, residence hall, student residence |
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| earthworm | (noun) terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers | Synonyms: angleworm, crawler, dew worm, fishing worm, fishworm, nightcrawler, nightwalker, red worm, wiggler |
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| echinoderm | (noun) marine invertebrates with tube feet and five-part radially symmetrical bodies | - |
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| ectoderm | (noun) the outer germ layer that develops into skin and nervous tissue | Synonyms: ectoblast, exoderm |
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| ectotherm | (noun) an animal whose body temperature varies with the temperature of its surroundings; any animal except birds and mammals | Synonyms: poikilotherm |
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| eelworm | (noun) any of various small free-living plant-parasitic roundworms | - |
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| endoderm | (noun) the inner germ layer that develops into the lining of the digestive and respiratory systems | Synonyms: endoblast, entoblast, entoderm, hypoblast |
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| endosperm | (noun) nutritive tissue surrounding the embryo within seeds of flowering plants | - |
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| ensiform | (adjective) shaped like a sword blade | Synonyms: bladelike, sword-shaped, swordlike |
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| entoderm | (noun) the inner germ layer that develops into the lining of the digestive and respiratory systems | Synonyms: endoblast, endoderm, entoblast, hypoblast |
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| episperm | (noun) protective outer layer of seeds of flowering plants | Synonyms: seed coat, testa |
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| exoderm | (noun) the outer germ layer that develops into skin and nervous tissue | Synonyms: ectoblast, ectoderm |
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| exotherm | (noun) a compound that gives off heat during its formation and absorbs heat during its decomposition | - |
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| falciform | (adjective) curved like a sickle | Synonyms: falcate, sickle-shaped |
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| farm | (noun) workplace consisting of farm buildings and cultivated land as a unit | - |
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| (verb) cultivate by growing, often involving improvements by means of agricultural techniques | Synonyms: grow, produce, raise |
| (verb) collect fees or profits | - |
| (verb) be a farmer; work as a farmer | - |
| filiform | (adjective) thin in diameter; resembling a thread | Synonyms: filamentlike, filamentous, threadlike, thready |
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| firearm | (noun) a portable gun | Synonyms: piece, small-arm |
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| firestorm | (noun) an outburst of controversy | - |
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| (noun) a storm in which violent winds are drawn into the column of hot air rising over a severely bombed area | - |
| firm | (adjective) unwavering in devotion to friend or vow or cause | Synonyms: fast, loyal, truehearted |
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| (adjective) securely fixed in place | Synonyms: fast, immobile |
| (adjective) strong and sure | Synonyms: strong |
| (adjective) not soft or yielding to pressure | Synonyms: solid |
| (adjective) possessing the tone and resiliency of healthy tissue | - |
| (adjective) marked by firm determination or resolution; not shakable | Synonyms: steadfast, steady, stiff, unbendable, unfaltering, unshakable, unwavering |
| (adjective) securely established | - |
| (adjective) not subject to revision or change | - |
| (adjective) (of especially a person's physical features) not shaking or trembling | - |
| (adjective) not liable to fluctuate or especially to fall | Synonyms: steady, unfluctuating |
| (noun) the members of a business organization that owns or operates one or more establishments | Synonyms: business firm, house |
| (adverb) with resolute determination | Synonyms: firmly, steadfastly, unwaveringly |
| (verb) become taut or tauter | Synonyms: tauten |
| (verb) make taut or tauter | Synonyms: tauten |
| fishworm | (noun) terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers | Synonyms: angleworm, crawler, dew worm, earthworm, fishing worm, nightcrawler, nightwalker, red worm, wiggler |
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| flatworm | (noun) parasitic or free-living worms having a flattened body | Synonyms: platyhelminth |
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| fluoroform | (noun) colorless gas haloform CHF3 (similar to chloroform) | Synonyms: trifluoromethane |
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| forearm | (noun) the part of the superior limb between the elbow and the wrist | - |
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| (verb) arm in advance of a confrontation | - |
| form | (noun) the spatial arrangement of something as distinct from its substance | Synonyms: shape |
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| (noun) a life-size dummy used to display clothes | Synonyms: manakin, manikin, mannequin, mannikin |
| (noun) a mold for setting concrete | - |
| (noun) the visual appearance of something or someone | Synonyms: cast, shape |
| (noun) any spatial attributes (especially as defined by outline) | Synonyms: configuration, conformation, contour, shape |
| (noun) an ability to perform well | - |
| (noun) a particular mode in which something is manifested | - |
| (noun) alternative names for the body of a human being | Synonyms: anatomy, bod, build, chassis, figure, flesh, frame, human body, material body, physical body, physique, shape, soma |
| (noun) a perceptual structure | Synonyms: pattern, shape |
| (noun) a category of things distinguished by some common characteristic or quality | Synonyms: kind, sort, variety |
| (noun) the phonological or orthographic sound or appearance of a word that can be used to describe or identify something | Synonyms: descriptor, signifier, word form |
| (noun) a printed document with spaces in which to write | - |
| (noun) an arrangement of the elements in a composition or discourse | - |
| (noun) a body of students who are taught together | Synonyms: class, course, grade |
| (noun) (biology) a group of organisms within a species that differ in trivial ways from similar groups | Synonyms: strain, var., variant |
| (noun) (physical chemistry) a distinct state of matter in a system; matter that is identical in chemical composition and physical state and separated from other material by the phase boundary | Synonyms: phase |
| (verb) give shape or form to | Synonyms: shape |
| (verb) assume a form or shape | - |
| (verb) make something, usually for a specific function | Synonyms: forge, mold, mould, shape, work |
| (verb) create (as an entity) | Synonyms: organise, organize |
| (verb) establish or impress firmly in the mind | Synonyms: imprint |
| (verb) to compose or represent | Synonyms: constitute, make |
| (verb) develop into a distinctive entity | Synonyms: spring, take form, take shape |
| fusiform | (adjective) tapering at each end | Synonyms: cigar-shaped, spindle-shaped |
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| germ | (noun) a minute life form (especially a disease-causing bacterium); the term is not in technical use | Synonyms: bug, microbe |
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| (noun) a small apparently simple structure (as a fertilized egg) from which new tissue can develop into a complete organism | - |
| (noun) anything that provides inspiration for later work | Synonyms: seed, source |
| glowworm | (noun) the luminous larva or wingless grub-like female of a firefly | - |
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| gymnosperm | (noun) plants of the class Gymnospermae having seeds not enclosed in an ovary | - |
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| hailstorm | (noun) a storm during which hail falls | - |
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| haloform | (noun) compounds with the formula CHX3, where X is a halogen atom | - |
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| harm | (noun) the act of damaging something or someone | Synonyms: damage, hurt, scathe |
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| (noun) the occurrence of a change for the worse | Synonyms: damage, impairment |
| (noun) any physical damage to the body caused by violence or accident or fracture etc.; the condition of an injury | Synonyms: hurt, injury, trauma |
| (verb) cause or do harm to | - |
| herm | (noun) a statue consisting of a squared stone pillar with a carved head (usually a bearded Hermes) on top; used in ancient Greece as a boundary marker or signpost | - |
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| homeotherm | (noun) an animal that has a body temperature that is relatively constant and independent of the environmental temperature | Synonyms: homoiotherm, homotherm |
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| homoiotherm | (noun) an animal that has a body temperature that is relatively constant and independent of the environmental temperature | Synonyms: homeotherm, homotherm |
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| homotherm | (noun) an animal that has a body temperature that is relatively constant and independent of the environmental temperature | Synonyms: homeotherm, homoiotherm |
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| hookworm | (noun) parasitic bloodsucking roundworms having hooked mouth parts to fasten to the intestinal wall of human and other hosts | - |
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| (noun) infestation of the intestines by hookworms which enter the body (usually) through the skin | Synonyms: hookworm disease |
| inchworm | (noun) small hairless caterpillar having legs on only its front and rear segments; mostly larvae of moths of the family Geometridae | Synonyms: looper, measuring worm |
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| infirm | (adjective) lacking bodily or muscular strength or vitality | Synonyms: debile, decrepit, feeble, rickety, sapless, weak, weakly |
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| (adjective) lacking firmness of will or character or purpose | - |
| inform | (verb) give character or essence to | - |
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| (verb) impart knowledge of some fact, state of affairs, or event to | - |
| (verb) act as an informer | - |
| iodoform | (noun) a yellowish crystalline solid with a penetrating odor; sometimes used as an antiseptic dressing | Synonyms: triiodomethane |
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| (noun) sweet smelling yellow solid haloform CHI3 | Synonyms: tri-iodomethane |
| isogeotherm | (noun) an isogram connecting points of equal temperature below the surface of the earth. | - |
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| isotherm | (noun) (meteorology) an isogram connecting points having the same temperature at a given time | - |
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