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Aptly

In an apt or suitable manner; fitly; properly; pertinently; appropriately; readily.

Aptness

Fitness; suitableness; appropriateness; as, the aptness of things to their end.

Aptote

A noun which has no distinction of cases; an indeclinable noun.

Aptotic

Pertaining to, or characterized by, aptotes; uninflected; as, aptotic languages.

Aptychus

A shelly plate found in the terminal chambers of ammonite shells. Some authors consider them to be jaws; others, opercula.

Apus

A genus of fresh-water phyllopod crustaceans. See Phyllopod.

Apyretic

Without fever; -- applied to days when there is an intermission of fever.

Apyrous

Incombustible; capable of sustaining a strong heat without alteration of form or properties.

Aqua

Water; -- a word much used in pharmacy and the old chemistry, in various signification, determined by the word or words annexed.

aquaculture

the cultivation of aquatic animals, such as fish or shellfish, or of plants, such as seaweed, in a controlled and sometimes enclosed body of water. The term includes use of either salt or fresh water. It is a form of agriculture, but under water.

aqualung

an apparatus containing compressed air or other oxygen-gas mixture, permitting a person to breathe under water; -- also called a scuba.

Aquamarine

A transparent, pale green variety of beryl, used as a gem. See Beryl.

Aquapuncture

The introduction of water subcutaneously for the relief of pain.

Aquarelle

A design or painting in thin transparent water colors; also, the mode of painting in such colors.

Aquarian

One of a sect of Christian in the primitive church who used water instead of wine in the Lord's Supper.

Aquarium

An artificial pond, or a globe or tank (usually with glass sides), in which living specimens of aquatic animals or plants are kept.

Aquarius

The Water-bearer; the eleventh sign in the zodiac, which the sun enters about the 20th of January; -- so called from the rains which prevail at that season in Italy and the East. A constellation south of Pegasus.

Aquatinta Aquatint

A kind of etching in which spaces are bitten by the use of aqua fortis, by which an effect is produced resembling a drawing in water colors or India ink; also, the engraving produced by this method.

aquavit

a Scandinavian liquor usually flavored with caroway seeds; -- also called akvavit.

Aqueduct

A conductor, conduit, or artificial channel for conveying water, especially one for supplying large cities with water.

Aqueous

Partaking of the nature of water, or abounding with it; watery.

aquifer

an underground bed or layer yielding ground water for wells and springs etc.; as, the Oglala aquifer. The water contained in an aquifer may be of great age, and in such cases is sometimes called fossil water.

Aquiferous

Consisting or conveying water or a watery fluid; as, aquiferous vessels; the aquiferous system.

aquilege

a plant of the genus Aquilegia having irregular showy spurred flowers; N temperate regions esp. mountains.

aquilegia

a plant of the genus Aquilegia having irregular showy spurred flowers; N temperate regions esp. mountains.

Aquiparous

Secreting water; -- applied to certain glands.

Aquitanian

Of or pertaining to Aquitania, now called Gascony.

Aquosity

The condition of being wet or watery; wateriness.

Ar

Ere; before.

Ara

A name of the great blue and yellow macaw (Ara ararauna), native of South America.

Arab

One of a swarthy race occupying Arabia, and numerous in Syria, Northern Africa, etc.

Araba

A wagon or cart, usually heavy and without springs, and often covered.

Arabian

A native of Arabia; an Arab.

Arabic

The language of the Arabians.

Arabin

A carbohydrate, isomeric with cane sugar, contained in gum arabic, from which it is extracted as a white, amorphous substance.

Arabinose

A sugar of the composition C5H10O5, obtained from cherry gum by boiling it with dilute sulphuric acid.

Arabism

An Arabic idiom peculiarly of language.

Arabist

One well versed in the Arabic language or literature; also, formerly, one who followed the Arabic system of surgery.

Araby

The country of Arabia.

Aracanese

Of or pertaining to Aracan, a province of British Burmah. A native or natives of Aracan.

Aracari

A South American bird, of the genus Pleroglossius, allied to the toucans. There are several species.

Arace

To tear up by the roots; to draw away.

Araceous

Of or pertaining to an order of plants, of which the genus Arum is the type.

Arachnida

One of the classes of Arthropoda. See Illustration in Appendix.

Arachnidial

Of or pertaining to the Arachnida. Pertaining to the arachnidium.

Arachnidium

The glandular organ in which the material for the web of spiders is secreted.

Arachnoidal

Pertaining to the arachnoid membrane; arachnoid.

Arachnology

The department of Zoology which treats of spiders and other Arachnida.

Aragonese

Of or pertaining to Aragon, in Spain, or to its inhabitants. A native or natives of Aragon, in Spain.

Aragonite

A mineral composed of calcium carbonate and identical in composition with calcite, but differing from it in its crystalline form and some of its physical characters.

Araguato

A South American monkey, the ursine howler (Mycetes ursinus). See Howler, n., 2.

aralia

any of various plants of the genus Aralia; often aromatic plants having compound leaves and small umbellate flowers.

Araliaceae

a family of mostly tropical trees and shrubs and lianas: ginseng; hedera.

Aramaic

Pertaining to Aram, or to the territory, inhabitants, language, or literature of Syria and Mesopotamia; Aram/an; -- specifically applied to the northern branch of the Semitic family of languages, including Syriac and Chaldee. The Aramaic language.

Aramean Aramaean

Of or pertaining to the Syrians and Chaldeans, or to their language; Aramaic. A native of Aram.

Aranea

a genus of common garden spiders.

Araneae

an order of arthropods constituting the spiders.

Araneidan

Of or pertaining to the Araneina or spiders. One of the Araneina; a spider.

Araneina

The order of Arachnida that includes the spiders.

Araneose

Of the aspect of a spider's web; arachnoid.

Araneous

Cobweblike; extremely thin and delicate, like a cobweb; as, the araneous membrane of the eye. See Arachnoid.

Arango

A bead of rough carnelian. Arangoes were formerly imported from Bombay for use in the African slave trade.

Arapaima

A large fresh-water food fish of South America.

Arara

The palm (or great black) cockatoo, of Australia (Microglossus aterrimus).

Araucaria

A genus of tall conifers of the pine family. The species are confined mostly to South America and Australia. The wood cells differ from those of other in having the dots in their lateral surfaces in two or three rows, and the dots of contiguous rows alternating. The seeds are edible.

Araucariaceae

a family of tall evergreen cone-bearing trees of South America and Australia with broad leathery leaves; in some classifications included in the Pinaceae.

Araucarian

Relating to, or of the nature of, the Araucaria. The earliest conifers in geological history were mostly Araucarian.

Araujia

small genus of South American evergreen vines.

Arawn

Lord of Annwfn (the other world; land of fairies).

arb

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); shortened form of arbitrageur.

Arbalist Arbalest

A crossbow, consisting of a steel bow set in a shaft of wood, furnished with a string and a trigger, and a mechanical device for bending the bow. It served to throw arrows, darts, bullets, etc.

Arbitrable

Capable of being decided by arbitration; determinable.

Arbitrage

Judgment by an arbiter; authoritative determination.

arbitrageur

someone who engages in arbitrage; i. e. one who purchases securities in one market for immediate resale in another in the hope of profiting from the price differential.

Arbitral

Of or relating to an arbiter or an arbitration.

Arbitrarily

In an arbitrary manner; by will only; despotically; absolutely.

Arbitrariness

The quality of being arbitrary; despoticalness; tyranny.

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