| acetabulum | (noun) the cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint | Synonyms: cotyloid cavity |
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| alum | (noun) a double sulphate of aluminum and potassium that is used as an astringent (among other things) | - |
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| (noun) a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum | Synonyms: potash alum, potassium alum |
| (noun) a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum | Synonyms: ammonia alum, ammonium alum |
| (noun) a person who has received a degree from a school (high school or college or university) | Synonyms: grad, graduate |
| alumbloom | (noun) any of several herbs of the genus Heuchera | Synonyms: alumroot |
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| alumina | (noun) any of various forms of aluminum oxide occurring naturally as corundum | Synonyms: aluminium oxide, aluminum oxide |
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| aluminate | (noun) a compound of alumina and a metallic oxide | - |
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| aluminiferous | (adjective) containing alum or aluminum | - |
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| aluminise | (verb) cover with aluminum | Synonyms: aluminize |
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| aluminium | (noun) a silvery ductile metallic element found primarily in bauxite | Synonyms: Al, aluminum, atomic number 13 |
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| aluminize | (verb) cover with aluminum | Synonyms: aluminise |
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| aluminous | (adjective) pertaining to or containing aluminum or alum | - |
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| aluminum | (noun) a silvery ductile metallic element found primarily in bauxite | Synonyms: Al, aluminium, atomic number 13 |
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| alumna | (noun) a female person who has received a degree from a school (high school or college or university) | - |
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| alumnus | (noun) a male person who has received a degree from a school (high school or college or university) | - |
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| alumroot | (noun) any of several herbs of the genus Heuchera | Synonyms: alumbloom |
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| amylum | (noun) a complex carbohydrate found chiefly in seeds, fruits, tubers, roots and stem pith of plants, notably in corn, potatoes, wheat, and rice; an important foodstuff and used otherwise especially in adhesives and as fillers and stiffeners for paper and textiles | Synonyms: starch |
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| animalculum | (noun) microscopic organism such as an amoeba or paramecium | Synonyms: animalcule |
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| antebellum | (adjective) belonging to a period before a war especially the American Civil War | - |
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| asylum | (noun) a hospital for mentally incompetent or unbalanced person | Synonyms: insane asylum, institution, mental home, mental hospital, mental institution, psychiatric hospital |
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| (noun) a shelter from danger or hardship | Synonyms: refuge, sanctuary |
| bioluminescence | (noun) luminescence produced by physiological processes (as in the firefly) | - |
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| bioluminescent | (adjective) (of living organisms) emitting light | - |
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| calumet | (noun) a highly decorated ceremonial pipe of Amerindians; smoked on ceremonial occasions (especially as a token of peace) | Synonyms: peace pipe, pipe of peace |
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| calumniate | (verb) charge falsely or with malicious intent; attack the good name and reputation of someone | Synonyms: asperse, besmirch, defame, denigrate, slander, smear, smirch, sully |
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| calumniation | (noun) a false accusation of an offense or a malicious misrepresentation of someone's words or actions | Synonyms: calumny, defamation, hatchet job, obloquy, traducement |
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| calumniatory | (adjective) (used of statements) harmful and often untrue; tending to discredit or malign | Synonyms: calumnious, defamatory, denigrating, denigrative, denigratory, libellous, libelous, slanderous |
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| calumnious | (adjective) (used of statements) harmful and often untrue; tending to discredit or malign | Synonyms: calumniatory, defamatory, denigrating, denigrative, denigratory, libellous, libelous, slanderous |
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| calumniously | (adverb) in a false and slanderous and defamatory manner; with slander or calumny | Synonyms: slanderously |
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| calumny | (noun) an abusive attack on a person's character or good name | Synonyms: aspersion, defamation, denigration, slander |
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| (noun) a false accusation of an offense or a malicious misrepresentation of someone's words or actions | Synonyms: calumniation, defamation, hatchet job, obloquy, traducement |
| capitulum | (noun) a dense cluster of flowers or foliage | Synonyms: head |
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| (noun) fruiting spike of a cereal plant especially corn | Synonyms: ear, spike |
| (noun) an arrangement of leafy branches forming the top or head of a tree | - |
| cerebellum | (noun) a major division of the vertebrate brain; situated above the medulla oblongata and beneath the cerebrum in humans | - |
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| chemiluminescence | (noun) luminescence resulting from a chemical reaction as the oxidation of luciferin in fireflies | - |
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| chemiluminescent | (adjective) relating to the phenomenon of chemiluminescence | - |
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| cingulum | (noun) (anatomy) an encircling structure (as the ridge around the base of a tooth) | - |
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| clumber | (noun) a thickset spaniel with longish silky hair | Synonyms: clumber spaniel |
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| clump | (noun) a heavy dull sound (as made by impact of heavy objects) | Synonyms: clunk, thud, thump, thumping |
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| (noun) a grouping of a number of similar things | Synonyms: bunch, cluster, clustering |
| (noun) a compact mass | Synonyms: ball, chunk, clod, glob, lump |
| (verb) gather or cause to gather into a cluster | Synonyms: bunch, bundle, cluster |
| (verb) walk clumsily | Synonyms: clomp |
| (verb) come together as in a cluster or flock | Synonyms: cluster, constellate, flock |
| (verb) make or move along with a sound as of a horse's hooves striking the ground | Synonyms: clop, clunk, plunk |
| clumping | (noun) the sound of a horse's hoofs hitting on a hard surface | Synonyms: clip-clop, clippety-clop, clop, clopping, clunking |
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| clumsily | (adverb) in a clumsy manner | - |
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| clumsiness | (noun) the carriage of someone whose movements and posture are ungainly or inelegant | Synonyms: awkwardness |
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| (noun) the inelegance of someone stiff and unrelaxed (as by embarrassment) | Synonyms: awkwardness, gracelessness, stiffness |
| (noun) unskillfulness resulting from a lack of training | Synonyms: awkwardness, ineptitude, ineptness, maladroitness, slowness |
| clumsy | (adjective) lacking grace in movement or posture | Synonyms: clunky, gawky, ungainly, unwieldy |
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| (adjective) not elegant or graceful in expression | Synonyms: awkward, cumbersome, ill-chosen, inapt, inept |
| (adjective) showing lack of skill or aptitude | Synonyms: bungling, fumbling, incompetent |
| (adjective) difficult to handle or manage especially because of shape | Synonyms: awkward, bunglesome, ungainly |
| coagulum | (noun) a lump of material formed from the content of a liquid | Synonyms: clot |
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| columbarium | (noun) a sepulchral vault or other structure having recesses in the walls to receive cinerary urns | - |
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| (noun) a niche for a funeral urn containing the ashes of the cremated dead | Synonyms: cinerarium |
| (noun) a birdhouse for pigeons | Synonyms: columbary, dovecote |
| columbary | (noun) a birdhouse for pigeons | Synonyms: columbarium, dovecote |
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| columbine | (noun) a plant of the genus Aquilegia having irregular showy spurred flowers; north temperate regions especially mountains | Synonyms: aquilege, aquilegia |
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| columbite | (noun) a black mineral that is an ore of niobium and tantalum | Synonyms: niobite |
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| columbium | (noun) a former name for niobium | - |
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| columbo | (noun) any of various tall perennial herbs constituting the genus Frasera; widely distributed in warm dry upland areas of California, Oregon, and Washington | Synonyms: American columbo, American gentian, deer's-ear, deer's-ears, pyramid plant |
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| columella | (noun) a small column (or structure resembling a column) that is a part of a plant or animal | - |
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| column | (noun) (architecture) a tall vertical cylindrical structure standing upright and used to support a structure | Synonyms: pillar |
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| (noun) a vertical cylindrical structure standing alone and not supporting anything (such as a monument) | Synonyms: pillar |
| (noun) a vertical glass tube used in column chromatography; a mixture is poured in the top and washed through a stationary substance where components of the mixture are adsorbed selectively to form colored bands | Synonyms: chromatography column |
| (noun) any tubular or pillar-like supporting structure in the body | - |
| (noun) an article giving opinions or perspectives | Synonyms: editorial, newspaper column |
| (noun) a page or text that is vertically divided | - |
| (noun) a line of units following one after another | - |
| (noun) a vertical array of numbers or other information | - |
| (noun) anything that approximates the shape of a column or tower | Synonyms: pillar, tower |
| columnar | (adjective) characterized by columns | - |
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| (adjective) having the form of a column | Synonyms: columniform, columnlike |
| columnea | (noun) tropical plant having thick hairy somewhat toothed leaves and solitary or clustered yellow to scarlet flowers; many cultivated for their flowers and ornamental foliage | - |
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| columned | (adjective) having or resembling columns; having columns of a specified kind (often used as a combining form) | - |
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| columniation | (noun) (architecture) the arrangement of columns (especially freestanding columns) in a structure | - |
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| columniform | (adjective) having the form of a column | Synonyms: columnar, columnlike |
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| columnist | (noun) a journalist who writes editorials | Synonyms: editorialist |
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| columnlike | (adjective) having the form of a column | Synonyms: columnar, columniform |
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| curriculum | (noun) an integrated course of academic studies | Synonyms: course of study, program, programme, syllabus |
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| deplumate | (verb) strip of feathers | Synonyms: deplume, displume, pluck, pull, tear |
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| deplume | (verb) strip of feathers | Synonyms: deplumate, displume, pluck, pull, tear |
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| (verb) strip of honors, possessions, or attributes | Synonyms: displume |
| displume | (verb) strip of feathers | Synonyms: deplumate, deplume, pluck, pull, tear |
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| (verb) strip of honors, possessions, or attributes | Synonyms: deplume |
| diverticulum | (noun) a herniation through the muscular wall of a tubular organ (especially the colon) | - |
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| doliolum | (noun) free-swimming oceanic tunicate with a barrel-shaped transparent body | - |
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| emolument | (noun) compensation received by virtue of holding an office or having employment (usually in the form of wages or fees) | - |
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| epiphyllum | (noun) any cactus of the genus Epiphyllum having flattened jointed irregularly branching stems and showy tubular flowers | Synonyms: orchid cactus |
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| filum | (noun) a threadlike structure (as a chainlike series of cells) | Synonyms: filament |
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| flagellum | (noun) a lash-like appendage used for locomotion (e.g., in sperm cells and some bacteria and protozoa) | - |
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| (noun) a whip used to inflict punishment | Synonyms: scourge |
| flume | (noun) watercourse that consists of an open artificial chute filled with water for power or for carrying logs | - |
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| (noun) a narrow gorge with a stream running through it | Synonyms: gulch |
| flummery | (noun) meaningless ceremonies and flattery | Synonyms: mummery |
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| (noun) a bland custard or pudding especially of oatmeal | - |
| flummox | (verb) be a mystery or bewildering to | Synonyms: amaze, baffle, beat, bewilder, dumbfound, get, gravel, mystify, nonplus, perplex, pose, puzzle, stick, stupefy, vex |
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| flump | (verb) set (something or oneself) down with or as if with a noise | Synonyms: plank, plonk, plop, plump, plump down, plunk, plunk down |
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| (verb) fall heavily | Synonyms: flump down |
| galumph | (verb) move around heavily and clumsily | - |
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| glum | (adjective) moody and melancholic | - |
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| (adjective) showing a brooding ill humor | Synonyms: dark, dour, glowering, moody, morose, saturnine, sour, sullen |
| glume | (noun) small dry membranous bract found in inflorescences of Gramineae and Cyperaceae | - |
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| glumly | (adverb) in a sullen manner | Synonyms: dourly, sullenly |
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| glumness | (noun) a gloomy ill-tempered feeling | Synonyms: moroseness, sullenness |
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| (noun) an atmosphere of depression and melancholy | Synonyms: gloom, gloominess |
| hilum | (noun) (anatomy) a depression or fissure where vessels or nerves or ducts enter a bodily organ | Synonyms: hilus |
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| (noun) the scar on certain seeds marking its point of attachment to the funicle | - |
| hoodlum | (noun) an aggressive and violent young criminal | Synonyms: goon, hood, punk, strong-armer, thug, tough, toughie |
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| hordeolum | (noun) an infection of the sebaceous gland of the eyelid | Synonyms: eye infection, sty, stye |
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| hydroflumethiazide | (noun) diuretic used to treat hypertension and edema | - |
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| illume | (verb) introduce light into | Synonyms: illuminate, illumine, light, light up |
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| illuminance | (noun) the luminous flux incident on a unit area | Synonyms: illumination |
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| illuminant | (noun) something that can serve as a source of light | - |
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| illuminate | (verb) introduce light into | Synonyms: illume, illumine, light, light up |
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| (verb) make free from confusion or ambiguity; make clear | Synonyms: clear, clear up, crystalise, crystalize, crystallise, crystallize, elucidate, enlighten, shed light on, sort out, straighten out |
| (verb) add embellishments and paintings to (medieval manuscripts) | - |
| illuminated | (adjective) provided with artificial light | Synonyms: lighted, lit, well-lighted |
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| illuminating | (adjective) tending to increase knowledge or dissipate ignorance | Synonyms: enlightening, informative |
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| illumination | (noun) painting or drawing included in a book (especially in illuminated medieval manuscripts) | Synonyms: miniature |
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| (noun) the luminous flux incident on a unit area | Synonyms: illuminance |
| (noun) an interpretation that removes obstacles to understanding | Synonyms: clarification, elucidation |
| (noun) the degree of visibility of your environment | - |
| (noun) a condition of spiritual awareness; divine illumination | Synonyms: light |
| illumine | (verb) introduce light into | Synonyms: illume, illuminate, light, light up |
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| infundibulum | (noun) any of various funnel-shaped parts of the body (but especially the hypophyseal stalk) | - |
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| inoculum | (noun) a substance (a virus or toxin or immune serum) that is introduced into the body to produce or increase immunity to a particular disease | Synonyms: inoculant |
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| kalumpang | (noun) large tree of Old World tropics having foul-smelling orange-red blossoms followed by red pods enclosing oil-rich seeds sometimes used as food | Synonyms: Java olives, Sterculia foetida |
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| lumbago | (noun) backache affecting the lumbar region or lower back; can be caused by muscle strain or arthritis or vascular insufficiency or a ruptured intervertebral disc | Synonyms: lumbar pain |
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| lumbar | (adjective) of or relating to or near the part of the back between the ribs and the hipbones | - |
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| lumber | (noun) an implement used in baseball by the batter | Synonyms: baseball bat |
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| (noun) the wood of trees cut and prepared for use as building material | Synonyms: timber |
| (verb) cut lumber, as in woods and forests | Synonyms: log |
| (verb) move heavily or clumsily | Synonyms: pound |
| lumbering | (adjective) slow and laborious because of weight | Synonyms: heavy, ponderous |
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| (noun) the trade of cutting or preparing or selling timber | - |
| lumberjack | (noun) a short warm outer jacket | Synonyms: lumber jacket |
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| (noun) a person who fells trees | Synonyms: faller, feller, logger, lumberman |
| lumberman | (noun) a person who fells trees | Synonyms: faller, feller, logger, lumberjack |
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| lumbermill | (noun) a mill for dressing logs and lumber | Synonyms: sawmill |
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| lumberyard | (noun) a workplace where lumber is stocked for sale | - |
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| lumbosacral | (adjective) of or relating to or near the small of the back and the back part of the pelvis between the hips | - |
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| lumbus | (noun) either side of the backbone between the hipbone and the ribs in humans as well as quadrupeds | Synonyms: loin |
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| lumen | (noun) a cavity or passage in a tubular organ | - |
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| (noun) a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions | Synonyms: lm |
| luminaire | (noun) an electrical device used to create artificial light by use of an electric lamp; all light fixtures have a fixture body and a light socket to hold the lamp and allow for its replacement | Synonyms: light fitting, light fixture |
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