arcsecond | (noun) a 60th part of a minute of arc | Synonyms: second |
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arcsin | (noun) the inverse function of the sine; the angle that has a sine equal to a given number | Synonyms: arc sine, arcsine, inverse sine |
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arcsine | (noun) the inverse function of the sine; the angle that has a sine equal to a given number | Synonyms: arc sine, arcsin, inverse sine |
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arctan | (noun) the inverse function of the tangent; the angle that has a tangent equal to a given number | Synonyms: arc tangent, arctangent, inverse tangent |
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arctangent | (noun) the inverse function of the tangent; the angle that has a tangent equal to a given number | Synonyms: arc tangent, arctan, inverse tangent |
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arctic | (noun) a waterproof overshoe that protects shoes from water or snow | Synonyms: galosh, golosh, gumshoe, rubber |
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arctiid | (noun) stout-bodied broad-winged moth with conspicuously striped or spotted wings; larvae are hairy caterpillars | Synonyms: arctiid moth |
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arcus | (noun) a whitish deposit in the shape of an arc that is sometimes seen in the cornea | Synonyms: arcus senilis |
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ard | (noun) a simple light plough without a mouldboard. | Synonyms: ard plough, scratch plough |
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ardeb | (noun) a unit of dry measure used in Egypt | - |
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ardor | (noun) intense feeling of love | Synonyms: ardour |
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(noun) a feeling of strong eagerness (usually in favor of a person or cause) | Synonyms: ardour, elan, zeal |
(noun) feelings of great warmth and intensity | Synonyms: ardour, fervency, fervidness, fervor, fervour, fire |
ardour | (noun) intense feeling of love | Synonyms: ardor |
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(noun) a feeling of strong eagerness (usually in favor of a person or cause) | Synonyms: ardor, elan, zeal |
(noun) feelings of great warmth and intensity | Synonyms: ardor, fervency, fervidness, fervor, fervour, fire |
arduousness | (noun) extreme effortfulness | Synonyms: strenuousness |
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are | (noun) a unit of surface area equal to 100 square meters | Synonyms: ar |
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area | (noun) a part of a structure having some specific characteristic or function | - |
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(noun) the extent of a 2-dimensional surface enclosed within a boundary | Synonyms: expanse, surface area |
(noun) a part of an animal that has a special function or is supplied by a given artery or nerve | Synonyms: region |
(noun) a subject of study | - |
(noun) a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography) | Synonyms: country |
(noun) a particular environment or walk of life | Synonyms: arena, domain, field, orbit, sphere |
areaway | (noun) a passageway between buildings or giving access to a basement | - |
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areca | (noun) any of several tall tropical palms native to southeastern Asia having egg-shaped nuts | - |
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areflexia | (noun) absence of a reflex; a sign of possible nerve damage | - |
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arena | (noun) a playing field where sports events take place | Synonyms: scene of action |
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(noun) a large structure for open-air sports or entertainments | Synonyms: bowl, sports stadium, stadium |
(noun) the central area of an ancient Roman amphitheater where contests and spectacles were held; especially an area that was strewn with sand | - |
(noun) a particular environment or walk of life | Synonyms: area, domain, field, orbit, sphere |
arenavirus | (noun) animal viruses belonging to the family Arenaviridae | - |
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areola | (noun) small circular area such as that around the human nipple or an inflamed area around a pimple or insect bite | Synonyms: ring of color |
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(noun) small space in a tissue or body part such as the area between veins on a leaf or an insect's wing | - |
arere | (noun) large west African tree having large palmately lobed leaves and axillary cymose panicles of small white flowers and one-winged seeds; yields soft white to pale yellow wood | Synonyms: obeche, obechi, samba, Triplochiton scleroxcylon |
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arete | (noun) a sharp narrow ridge found in rugged mountains | - |
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arethusa | (noun) any of several bog orchids of the genus Arethusa having 1 or 2 showy flowers | - |
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argal | (noun) wild sheep of semidesert regions in central Asia | Synonyms: argali, Ovis ammon |
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argali | (noun) wild sheep of semidesert regions in central Asia | Synonyms: argal, Ovis ammon |
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argasid | (noun) tick lacking a dorsal shield and having mouth parts on the under side of the head | Synonyms: soft tick |
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argemone | (noun) any plant of the genus Argemone having large white or yellow flowers and prickly leaves and stems and pods; chiefly of tropical America | Synonyms: devil's fig, prickly poppy, white thistle |
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argent | (noun) a metal tincture used in heraldry to give a silvery appearance | - |
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argentine | (noun) any of various small silver-scaled salmon-like marine fishes | - |
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argentinosaur | (noun) huge herbivorous dinosaur of Cretaceous found in Argentina | - |
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argentite | (noun) a valuable silver ore consisting of silver sulfide (Ag2S) | - |
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argil | (noun) a white clay (especially a white clay used by potters) | - |
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argillite | (noun) a sedimentary rock differing from shale in being bound by silica and from slate in having no slate cleavages | - |
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arginine | (noun) a bitter tasting amino acid found in proteins and necessary for nutrition; its absence from the diet leads to a reduced production of spermatozoa | - |
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argon | (noun) a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere | Synonyms: Ar, atomic number 18 |
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argonaut | (noun) someone engaged in a dangerous but potentially rewarding adventure | - |
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argonon | (noun) any of the chemically inert gaseous elements of the helium group in the periodic table | Synonyms: inert gas, noble gas |
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argosy | (noun) one or more large merchant ships | - |
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argot | (noun) a characteristic language of a particular group (as among thieves) | Synonyms: cant, jargon, lingo, patois, slang, vernacular |
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arguer | (noun) someone who engages in debate | Synonyms: debater |
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arguing | (noun) a contentious speech act; a dispute where there is strong disagreement | Synonyms: argument, contention, contestation, controversy, disceptation, disputation, tilt |
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argument | (noun) a variable in a logical or mathematical expression whose value determines the dependent variable; if f(x)=y, x is the independent variable | - |
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(noun) a course of reasoning aimed at demonstrating a truth or falsehood; the methodical process of logical reasoning | Synonyms: argumentation, line, line of reasoning, logical argument |
(noun) a discussion in which reasons are advanced for and against some proposition or proposal | Synonyms: argumentation, debate |
(noun) a summary of the subject or plot of a literary work or play or movie | Synonyms: literary argument |
(noun) a fact or assertion offered as evidence that something is true | Synonyms: statement |
(noun) a contentious speech act; a dispute where there is strong disagreement | Synonyms: arguing, contention, contestation, controversy, disceptation, disputation, tilt |
(noun) (computer science) a reference or value that is passed to a function, procedure, subroutine, command, or program | Synonyms: parameter |
argumentation | (noun) a course of reasoning aimed at demonstrating a truth or falsehood; the methodical process of logical reasoning | Synonyms: argument, line, line of reasoning, logical argument |
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(noun) a discussion in which reasons are advanced for and against some proposition or proposal | Synonyms: argument, debate |
argus | (noun) large brilliantly patterned East Indian pheasant | Synonyms: argus pheasant |
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argyle | (noun) a sock knitted or woven with an argyle design | Synonyms: argyll |
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(noun) a design consisting of a pattern of varicolored diamonds on a solid background (originally for knitted articles); patterned after the tartan of a clan in western Scotland | Synonyms: argyll |
(noun) a covered gravy holder of silver or other metal containing a detachable central vessel for hot water to keep the gravy warm | Synonyms: argyll |
argyll | (noun) a sock knitted or woven with an argyle design | Synonyms: argyle |
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(noun) a design consisting of a pattern of varicolored diamonds on a solid background (originally for knitted articles); patterned after the tartan of a clan in western Scotland | Synonyms: argyle |
(noun) a covered gravy holder of silver or other metal containing a detachable central vessel for hot water to keep the gravy warm | Synonyms: argyle |
argyrodite | (noun) a rare steel-grey mineral consisting of silver and germanium and sulfur | - |
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aria | (noun) an elaborate song for solo voice | - |
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arianist | (noun) an adherent of Arianism (the belief that Jesus Christ was not truly God) | - |
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aridity | (noun) the quality of yielding nothing of value | Synonyms: barrenness, fruitlessness |
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(noun) a deficiency of moisture (especially when resulting from a permanent absence of rainfall) | Synonyms: aridness, thirstiness |
aridness | (noun) a deficiency of moisture (especially when resulting from a permanent absence of rainfall) | Synonyms: aridity, thirstiness |
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arietta | (noun) a short aria | Synonyms: short aria |
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aril | (noun) fleshy and usually brightly colored cover of some seeds that develops from the ovule stalk and partially or entirely envelops the seed | - |
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arioso | (noun) (music) a short recitative that is melodic but is not an aria | - |
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arishth | (noun) large semi-evergreen tree of the East Indies; trunk exudes a tenacious gum; bitter bark used as a tonic; seeds yield an aromatic oil; sometimes placed in genus Melia | Synonyms: Azadirachta indica, margosa, Melia Azadirachta, neem, neem tree, nim tree |
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arista | (noun) bristlelike process near the tip of the antenna of certain flies | - |
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aristocracy | (noun) a privileged class holding hereditary titles | Synonyms: nobility |
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(noun) the most powerful members of a society | Synonyms: gentry |
aristocrat | (noun) a member of the aristocracy | Synonyms: blue blood, patrician |
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aristocratism | (noun) the principles, practices or characteristics of aristocracy. | - |
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arithmancy | (noun) divination by means of numbers | - |
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arithmetic | (noun) the branch of pure mathematics dealing with the theory of numerical calculations | - |
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arithmetician | (noun) someone who specializes in arithmetic | - |
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arity | (noun) the number of arguments that a function can take | - |
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ark | (noun) a boat built by Noah to save his family and animals from the flood | - |
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arles | (noun) money given by a buyer to a seller to bind a contract | Synonyms: earnest money |
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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 |
armada | (noun) a large fleet | - |
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armadillo | (noun) burrowing chiefly nocturnal mammal with body covered with strong horny plates | - |
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armament | (noun) the act of equipping with weapons in preparation for war | Synonyms: arming, equipping |
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(noun) weaponry used by military or naval force | - |
armamentarium | (noun) the collection of equipment and methods used in the practice of medicine | - |
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armature | (noun) coil in which voltage is induced by motion through a magnetic field | - |
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armband | (noun) a band worn around the upper arm | - |
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(noun) worn around arm as identification or to indicate mourning | - |
armchair | (noun) chair with a support on each side for arms | - |
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armet | (noun) a medieval helmet with a visor and a neck guard | - |
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armful | (noun) the quantity that can be contained in the arms | - |
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armguard | (noun) a protective covering for the wrist or arm that is used in archery and fencing and other sports | Synonyms: bracer |
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armhole | (noun) a hole through which you put your arm and where a sleeve can be attached | - |
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armiger | (noun) a squire carrying the armor of a knight | Synonyms: armor-bearer |
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(noun) a nobleman entitled to bear heraldic arms | - |
armilla | (noun) (archeology) a bracelet worn around the wrist or arm | - |
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(noun) a celestial globe consisting of metal hoops; used by early astronomers to determine the positions of stars | Synonyms: armillary sphere |
arming | (noun) the act of equipping with weapons in preparation for war | Synonyms: armament, equipping |
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armistice | (noun) a state of peace agreed to between opponents so they can discuss peace terms | Synonyms: cease-fire, truce |
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armlet | (noun) a band worn around the arm for decoration | Synonyms: arm band |
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armoire | (noun) a large wardrobe or cabinet; originally used for storing weapons | - |
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armor | (noun) tough more-or-less rigid protective covering of an animal or plant | Synonyms: armour |
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(noun) protective covering made of metal and used in combat | Synonyms: armour |
(noun) a military unit consisting of armored fighting vehicles | Synonyms: armour |
armorer | (noun) a manufacturer of firearms | Synonyms: armourer |
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(noun) an enlisted man responsible for the upkeep of small arms and machine guns etc. | Synonyms: armourer, artificer |
(noun) a worker skilled in making armor or arms | Synonyms: armourer |
armory | (noun) a place where arms are manufactured | Synonyms: armoury, arsenal |
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(noun) a military structure where arms and ammunition and other military equipment are stored and training is given in the use of arms | Synonyms: armoury, arsenal |
(noun) all the weapons and equipment that a country has | Synonyms: armoury, arsenal |
(noun) a collection of resources | Synonyms: armoury, inventory |
armour | (noun) tough more-or-less rigid protective covering of an animal or plant | Synonyms: armor |
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(noun) protective covering made of metal and used in combat | Synonyms: armor |
(noun) a military unit consisting of armored fighting vehicles | Synonyms: armor |
armourer | (noun) a manufacturer of firearms | Synonyms: armorer |
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(noun) an enlisted man responsible for the upkeep of small arms and machine guns etc. | Synonyms: armorer, artificer |
(noun) a worker skilled in making armor or arms | Synonyms: armorer |
armoury | (noun) a place where arms are manufactured | Synonyms: armory, arsenal |
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(noun) a military structure where arms and ammunition and other military equipment are stored and training is given in the use of arms | Synonyms: armory, arsenal |
(noun) all the weapons and equipment that a country has | Synonyms: armory, arsenal |
(noun) a collection of resources | Synonyms: armory, inventory |
armpit | (noun) the hollow under the arm where it is joined to the shoulder | Synonyms: axilla, axillary cavity, axillary fossa |
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armrest | (noun) a support for the arm | - |
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arms | (noun) weapons considered collectively | Synonyms: implements of war, munition, weaponry, weapons system |
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(noun) the official symbols of a family, state, etc. | Synonyms: blazon, blazonry, coat of arms |
army | (noun) a permanent organization of the military land forces of a nation or state | Synonyms: ground forces, regular army |
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(noun) a large number of people united for some specific purpose | - |
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 | - |
arnica | (noun) an ointment used in treating bruises | - |
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(noun) any of various rhizomatous usually perennial plants of the genus Arnica | - |
(noun) used especially in treating bruises | - |
aroid | (noun) any plant of the family Araceae; have small flowers massed on a spadix surrounded by a large spathe | Synonyms: arum |
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aroma | (noun) any property detected by the olfactory system | Synonyms: odor, odour, olfactory property, scent, smell |
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(noun) a distinctive odor that is pleasant | Synonyms: fragrance, perfume, scent |
aromatherapy | (noun) the therapeutic use of aromatic plant extracts and essential oils in baths or massage | - |
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aromaticity | (noun) The property of having an aroma. | - |
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