ar | (noun) a unit of surface area equal to 100 square meters | Synonyms: are |
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arabesque | (noun) an ornament that interlaces simulated foliage in an intricate design | - |
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(noun) position in which the dancer has one leg raised behind and arms outstretched in a conventional pose | - |
arability | (noun) the quality of land that is appropriate for cultivation | - |
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arable | (adjective) (of farmland) capable of being farmed productively | Synonyms: cultivable, cultivatable, tillable |
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araceous | (adjective) relating to a plant of the family Araceae | Synonyms: aroid |
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arachnid | (noun) air-breathing arthropods characterized by simple eyes and four pairs of legs | Synonyms: arachnoid |
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arachnidian | (adjective) relating to or resembling a member of the class Arachnida | Synonyms: arachnoid, spiderlike, spiderly, spidery |
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arachnoid | (adjective) relating to or resembling a member of the class Arachnida | Synonyms: arachnidian, spiderlike, spiderly, spidery |
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(noun) air-breathing arthropods characterized by simple eyes and four pairs of legs | Synonyms: arachnid |
(noun) the middle of the 3 meninges | Synonyms: arachnoid membrane |
arachnophobia | (noun) a morbid fear of spiders | - |
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aragonite | (noun) a mineral form of crystalline calcium carbonate; dimorphic with calcite | - |
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arak | (noun) any of various strong liquors distilled from the fermented sap of toddy palms or from fermented molasses | Synonyms: arrack |
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aralia | (noun) any of various plants of the genus Aralia; often aromatic plants having compound leaves and small umbellate flowers | - |
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arame | (noun) an edible seaweed with a mild flavor | - |
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araneidal | (adjective) relating to or resembling a spider | Synonyms: araneidan |
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araneidan | (adjective) relating to or resembling a spider | Synonyms: araneidal |
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arariba | (noun) Brazilian tree with handsomely marked wood | Synonyms: Centrolobium robustum |
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araroba | (noun) a bitter yellow powder used to treat skin diseases | Synonyms: chrysarobin, Goa powder |
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araucaria | (noun) any of several tall South American or Australian trees with large cones and edible seeds | - |
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arb | (noun) someone who engages in arbitrage (who purchases securities in one market for immediate resale in another in the hope of profiting from the price differential) | Synonyms: arbitrager, arbitrageur |
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arbalest | (noun) late version of the crossbow with a steel bow | Synonyms: arbalist |
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arbalist | (noun) late version of the crossbow with a steel bow | Synonyms: arbalest |
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(noun) archer who uses an arbalest | - |
arbiter | (noun) someone chosen to judge and decide a disputed issue | Synonyms: arbitrator, umpire |
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(noun) someone with the power to settle matters at will | Synonyms: supreme authority |
arbitrable | (adjective) appropriate for or subject to settlement by arbitration | - |
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arbitrage | (noun) a kind of hedged investment meant to capture slight differences in price; when there is a difference in the price of something on two different markets the arbitrageur simultaneously buys at the lower price and sells at the higher price | - |
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(verb) practice arbitrage, as in the stock market | - |
arbitrager | (noun) someone who engages in arbitrage (who purchases securities in one market for immediate resale in another in the hope of profiting from the price differential) | Synonyms: arb, arbitrageur |
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arbitrageur | (noun) someone who engages in arbitrage (who purchases securities in one market for immediate resale in another in the hope of profiting from the price differential) | Synonyms: arb, arbitrager |
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arbitral | (adjective) relating to or resulting from arbitration | Synonyms: arbitrational |
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arbitrament | (noun) the act of deciding as an arbiter; giving authoritative judgment | Synonyms: arbitration, arbitrement |
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arbitrarily | (adverb) in a random manner | Synonyms: at random, every which way, haphazardly, indiscriminately, randomly, willy-nilly |
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arbitrariness | (noun) the trait of acting unpredictably and more from whim or caprice than from reason or judgment | Synonyms: capriciousness, flightiness, whimsey, whimsicality, whimsy |
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arbitrary | (adjective) based on or subject to individual discretion or preference or sometimes impulse or caprice | - |
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arbitrate | (verb) act between parties with a view to reconciling differences | Synonyms: intercede, intermediate, liaise, mediate |
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arbitration | (noun) the act of deciding as an arbiter; giving authoritative judgment | Synonyms: arbitrament, arbitrement |
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(noun) (law) the hearing and determination of a dispute by an impartial referee agreed to by both parties (often used to settle disputes between labor and management) | - |
arbitrational | (adjective) relating to or resulting from arbitration | Synonyms: arbitral |
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arbitrative | (adjective) relating to or having the authority to arbitrate | - |
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arbitrator | (noun) someone chosen to judge and decide a disputed issue | Synonyms: arbiter, umpire |
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arbitrement | (noun) the act of deciding as an arbiter; giving authoritative judgment | Synonyms: arbitrament, arbitration |
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arbor | (noun) a framework that supports climbing plants | Synonyms: arbour, bower, pergola |
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(noun) any of various rotating shafts that serve as axes for larger rotating parts | Synonyms: mandrel, mandril, spindle |
(noun) tree (as opposed to shrub) | - |
arboraceous | (adjective) abounding in trees | Synonyms: arboreous, woodsy, woody |
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arborary | (adjective) of or relating to or formed by trees | Synonyms: arboreal, arborical, arborous |
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arboreal | (adjective) inhabiting or frequenting trees | Synonyms: arboreous, tree-living |
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(adjective) of or relating to or formed by trees | Synonyms: arborary, arborical, arborous |
(adjective) resembling a tree in form and branching structure | Synonyms: arboreous, arborescent, arboresque, arboriform, dendriform, dendroid, dendroidal, tree-shaped, treelike |
arboreous | (adjective) inhabiting or frequenting trees | Synonyms: arboreal, tree-living |
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(adjective) resembling a tree in form and branching structure | Synonyms: arboreal, arborescent, arboresque, arboriform, dendriform, dendroid, dendroidal, tree-shaped, treelike |
(adjective) abounding in trees | Synonyms: arboraceous, woodsy, woody |
arborescent | (adjective) resembling a tree in form and branching structure | Synonyms: arboreal, arboreous, arboresque, arboriform, dendriform, dendroid, dendroidal, tree-shaped, treelike |
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arboresque | (adjective) resembling a tree in form and branching structure | Synonyms: arboreal, arboreous, arborescent, arboriform, dendriform, dendroid, dendroidal, tree-shaped, treelike |
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arboretum | (noun) a facility where trees and shrubs are cultivated for exhibition | Synonyms: botanical garden |
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arborical | (adjective) of or relating to or formed by trees | Synonyms: arborary, arboreal, arborous |
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arboriculture | (noun) the tending of and caring for trees | Synonyms: tree farming |
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arboriculturist | (noun) someone trained in forestry | Synonyms: forester, tree farmer |
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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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arborise | (verb) branch out like trees | Synonyms: arborize |
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arborist | (noun) a specialist in treating damaged trees | Synonyms: tree surgeon |
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arborize | (verb) branch out like trees | Synonyms: arborise |
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arborolatry | (noun) the worship of trees | Synonyms: tree-worship |
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arborous | (adjective) of or relating to or formed by trees | Synonyms: arborary, arboreal, arborical |
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arborvirus | (noun) a large heterogeneous group of RNA viruses divisible into groups on the basis of the virions; they have been recovered from arthropods, bats, and rodents; most are borne by arthropods; they are linked by the epidemiologic concept of transmission between vertebrate hosts by arthropod vectors (mosquitoes, ticks, sandflies, midges, etc.) that feed on blood; they can cause mild fevers, hepatitis, hemorrhagic fever, and encephalitis | Synonyms: arbovirus |
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arborvitae | (noun) any of several Asian and North American conifers of the genera Thuja and Thujopsis | - |
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arbour | (noun) a framework that supports climbing plants | Synonyms: arbor, bower, pergola |
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arbovirus | (noun) a large heterogeneous group of RNA viruses divisible into groups on the basis of the virions; they have been recovered from arthropods, bats, and rodents; most are borne by arthropods; they are linked by the epidemiologic concept of transmission between vertebrate hosts by arthropod vectors (mosquitoes, ticks, sandflies, midges, etc.) that feed on blood; they can cause mild fevers, hepatitis, hemorrhagic fever, and encephalitis | Synonyms: arborvirus |
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arbutus | (noun) any of several evergreen shrubs of the genus Arbutus of temperate Europe and America | - |
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arc | (noun) electrical conduction through a gas in an applied electric field | Synonyms: discharge, electric arc, electric discharge, spark |
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(noun) a continuous portion of a circle | - |
(noun) something curved in shape | Synonyms: bow |
(verb) form an arch or curve | Synonyms: arch, curve |
arcade | (noun) a structure composed of a series of arches supported by columns | Synonyms: colonnade |
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(noun) a covered passageway with shops and stalls on either side | - |
arcadian | (adjective) (used with regard to idealized country life) idyllically rustic | Synonyms: bucolic, pastoral |
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arcane | (adjective) requiring secret or mysterious knowledge | - |
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arcanum | (noun) information known only to a special group | Synonyms: secret |
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arccos | (noun) the inverse function of the cosine; the angle that has a cosine equal to a given number | Synonyms: arc cosine, arccosine, inverse cosine |
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arccosecant | (noun) the angle that has a cosecant equal to a given number | Synonyms: arc cosecant, inverse cosecant |
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arccosine | (noun) the inverse function of the cosine; the angle that has a cosine equal to a given number | Synonyms: arc cosine, arccos, inverse cosine |
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arccotangent | (noun) the inverse function of the cotangent; the angle that has a cotangent equal to a given number | Synonyms: arc cotangent, inverse cotangent |
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arcdegree | (noun) a measure for arcs and angles | Synonyms: degree |
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arced | (adjective) forming or resembling an arch | Synonyms: arched, arching, arciform, arcuate, bowed |
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arcella | (noun) an amoeba-like protozoan with a chitinous shell resembling an umbrella | - |
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arch | (adjective) naughtily or annoyingly playful | Synonyms: impish, implike, mischievous, pixilated, prankish, puckish, wicked |
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(adjective) (used of behavior or attitude) characteristic of those who treat others with condescension | Synonyms: condescending, patronising, patronizing |
(noun) (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it | - |
(noun) a passageway under a curved masonry construction | Synonyms: archway |
(noun) a curved bony structure supporting or enclosing organs (especially the inner sides of the feet) | - |
(noun) a curved shape in the vertical plane that spans an opening | - |
(verb) form an arch or curve | Synonyms: arc, curve |
archaean | (adjective) of or relating to the earliest known rocks formed during the Precambrian Eon | Synonyms: archean |
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archaebacteria | (noun) considered ancient life forms that evolved separately from bacteria and blue-green algae | Synonyms: archaebacterium, archaeobacteria, archeobacteria |
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archaebacterium | (noun) considered ancient life forms that evolved separately from bacteria and blue-green algae | Synonyms: archaebacteria, archaeobacteria, archeobacteria |
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archaeobacteria | (noun) considered ancient life forms that evolved separately from bacteria and blue-green algae | Synonyms: archaebacteria, archaebacterium, archeobacteria |
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archaeologic | (adjective) related to or dealing with or devoted to archaeology | Synonyms: archaeological, archeologic, archeological |
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archaeological | (adjective) related to or dealing with or devoted to archaeology | Synonyms: archaeologic, archeologic, archeological |
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archaeologist | (noun) an anthropologist who studies prehistoric people and their culture | Synonyms: archeologist |
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archaeology | (noun) the branch of anthropology that studies prehistoric people and their cultures | Synonyms: archeology |
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archaeopteryx | (noun) extinct primitive toothed bird of the Jurassic period having a long feathered tail and hollow bones; usually considered the most primitive of all birds | Synonyms: Archaeopteryx lithographica, archeopteryx |
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archaeornis | (noun) extinct primitive toothed bird with a long feathered tail and three free clawed digits on each wing | - |
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archaeozoic | (adjective) of or belonging to earlier of two divisions of the Precambrian era | Synonyms: archeozoic |
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archaic | (adjective) little evolved from or characteristic of an earlier ancestral type | Synonyms: primitive |
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(adjective) so extremely old as seeming to belong to an earlier period | Synonyms: antediluvian, antiquated |
archaicism | (noun) the use of an archaic expression | Synonyms: archaism |
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archaise | (verb) give an archaic appearance of character to | Synonyms: archaize |
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archaism | (noun) the use of an archaic expression | Synonyms: archaicism |
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archaist | (noun) an expert or collector of antiquities | Synonyms: antiquarian, antiquary |
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(noun) a person who archaizes | - |
archaistic | (adjective) imitative of an archaic style or manner | - |
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archaize | (verb) give an archaic appearance of character to | Synonyms: archaise |
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archangel | (noun) an angel ranked above the highest rank in the celestial hierarchy | - |
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(noun) a biennial cultivated herb; its stems are candied and eaten and its roots are used medicinally | Synonyms: Angelica Archangelica, garden angelica |
archangelic | (adjective) of or relating to or resembling archangels | Synonyms: archangelical |
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archangelical | (adjective) of or relating to or resembling archangels | Synonyms: archangelic |
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archbishop | (noun) a bishop of highest rank | - |
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archbishopric | (noun) the territorial jurisdiction of an archbishop | - |
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archdeacon | (noun) (Anglican Church) an ecclesiastical dignitary usually ranking just below a bishop | - |
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archdeaconry | (noun) the territorial jurisdiction of an archdeacon | - |
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archdiocesan | (adjective) of or relating to an archdiocese | - |
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archdiocese | (noun) the diocese of an archbishop | - |
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archducal | (adjective) belonging to or befitting an archduke or his archduchy | - |
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