Webster's Dictionary, 1913

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Arecoline noun Also - lin [ From New Latin Areca , a genus of palms bearing betel nut.] An oily liquid substance, C 8 H 13 O 2 N, the chief alkaloid of the betel nut, to which the latter owes its anthelmintic action.

Areek adverb & adjective [ Prefix a- + reek .] In a reeking condition. Swift.

Arefaction noun [ Latin arefacere to dry.] The act of drying, or the state of growing dry.

The arefaction of the earth.
Sir M. Hale.

Arefy transitive verb [ Latin arere to be dry + -fly .] To dry, or make dry. Bacon.

Arena noun ; plural English Arenas ; Latin Arenæ [ Latin arena , harena , sand, a sandy place.]
1. (Rom. Antiq.) The area in the central part of an amphitheater, in which the gladiators fought and other shows were exhibited; -- so called because it was covered with sand.

2. Any place of public contest or exertion; any sphere of action; as, the arena of debate; the arena of life.

3. (Medicine) "Sand" or "gravel" in the kidneys.

Arenaceous adjective [ Latin arenaceus , from arena sand.] Sandy or consisting largely of sand; of the nature of sand; easily disintegrating into sand; friable; as, arenaceous limestone.

Arenarious adjective [ Latin arenarius , from arena sand.] Sandy; as, arenarious soil.

Arenation (ăr`e*nā"shŭn) noun [ Latin arenatio , from arena sand.] (Medicine) A sand bath; application of hot sand to the body. Dunglison.

Arendator noun [ Late Latin arendator , arrendator , from arendare , arrendare , to pay rent, from arenda yearly rent; ad + renda , French rente , English rent . Confer Arrentation and Rent .] In some provinces of Russia, one who farms the rents or revenues.

» A person who rents an estate belonging to the crown is called crown arendator . Tooke.

Areng A*ren"ga noun [ Malayan.] A palm tree ( Saguerus saccharifer ) which furnishes sago, wine, and fibers for ropes; the gomuti palm.

Arenicolite noun [ Latin arena sand + colere to cherish or live.] (Paleon.) An ancient wormhole in sand, preserved in the rocks. Dana.

Arenilitic adjective [ Latin arena sand + Greek li`qos stone.] Of or pertaining to sandstone; as, arenilitic mountains. Kirwan.

Arenose adjective [ Latin arenosus , from arena sand.] Sandy; full of sand. Johnson.

Arenulous adjective [ Latin arenula fine sand, dim. of arena .] Full of fine sand; like sand. [ Obsolete]

Areola noun ; plural Areolæ [ Latin areola , dim. of area : confer French aréole . See Area .]
1. An interstice or small space, as between the cracks of the surface in certain crustaceous lichens; or as between the fibers composing organs or vessels that interlace; or as between the nervures of an insect's wing.

2. (Anat. & Med.) The colored ring around the nipple, or around a vesicle or pustule.

Areolar adjective Pertaining to, or like, an areola; filled with interstices or areolæ.

reolar tissue (Anat.) , a form of fibrous connective tissue in which the fibers are loosely arranged with numerous spaces, or areolæ, between them.

Areolate, Areolated adjective [ Latin areola : confer French aréole .] Divided into small spaces or areolations, as the wings of insects, the leaves of plants, or the receptacle of compound flowers.

Areolation noun
1. Division into areolæ. Dana.

2. Any small space, bounded by some part different in color or structure, as the spaces bounded by the nervures of the wings of insects, or those by the veins of leaves; an areola.

Areole noun Same as Areola .

Areolet noun [ Dim. of Latin areola .] (Zoology) A small inclosed area; esp. one of the small spaces on the wings of insects, circumscribed by the veins.

Areometer noun [ Greek 'araio`s thin, rare + -meter : confer French aréomètre .] (Physics) An instrument for measuring the specific gravity of fluids; a form hydrometer.

Areometric, Areometrical adjective Pertaining to, or measured by, an areometer.

Areometry noun [ Greek 'araio`s thin, rare + -metry .] The art or process of measuring the specific gravity of fluids.

Areopagist noun See Areopagite .

Areopagite noun [ Latin Areopagites , Greek ....] A member of the Areopagus. Acts xvii. 34.

Areopagitic adjective [ Latin Areopagiticus , Greek ....] Pertaining to the Areopagus. Mitford.

Areopagus noun [ Latin , from Greek ..., and ... ..., hill of Ares (Mars' Hill).] The highest judicial court at Athens. Its sessions were held on Mars' Hill. Hence, any high court or tribunal

Areostyle adjective & noun See Intercolumniation , and Aræostyle .

Areosystyle adjective & noun See Intercolumniation , and Aræosystyle .

Arere transitive verb & i. See Arear . [ Obsolete] Ellis.

Arest noun A support for the spear when couched for the attack. [ Obsolete] Chaucer.

Aret transitive verb [ Middle English aretten , Old French areter ; a (L. ad ) + Old French reter , Latin reputare . See Repute .] To reckon; to ascribe; to impute. [ Obsolete] Chaucer.

Aretaics noun [ Greek ... virtue.] The ethical theory which excludes all relations between virtue and happiness; the science of virtue; -- contrasted with eudemonics . J. Grote.

Arête noun [ French, lit., a sharp fish bone, ridge, sharp edge, from Latin arista beard of grain.] (Geology) An acute and rugged crest of a mountain range or a subsidiary ridge between two mountain gorges.

Aretology noun [ Greek ...; ... virtue + ... discourse, ... to speak: confer French arétologie .] That part of moral philosophy which treats of virtue, its nature, and the means of attaining to it.

Arew adverb [ See Arow , Row .] In a row. [ Obsolete] "All her teeth arew ." Spenser.

Argal noun Crude tartar. See Argol .

Argal adverb A ludicrous corruption of the Latin word ergo , therefore. Shak.

Argal Ar"ga*li noun [ Mongolian.] (Zoology) A species of wild sheep ( Ovis ammon , or O. argali ), remarkable for its large horns. It inhabits the mountains of Siberia and central Asia.

» The bearded argali is the aoudad. See Aoudad . The name is also applied to the bighorn sheep of the Rocky Mountains. See Bighorn .

Argala noun [ Native name.] (Zoology) The adjutant bird.

Argand lamp [ Named from the inventor, Aimé Argand of Geneva.] A lamp with a circular hollow wick and glass chimney which allow a current of air both inside and outside of the flame.

Argand burner , a burner for an Argand lamp, or a gas burner in which the principle of that lamp is applied.

Argas noun A genus of venomous ticks which attack men and animals. The famous Persian Argas, also called Miana bug , is A. Persicus ; that of Central America, called talaje by the natives, is A. Talaje .

Argean adjective Pertaining to the ship Argo. See Argo .

Argent noun [ French argent , from Latin argentum , silver; akin to Greek 'a`rgyros silver, 'argo`s , 'argh`s , white, bright, Sanskrit rajata white, silver, raj to shine, Ir. arg white, milk, airgiod silver, money, and Latin arguere to make clear. See Argue .]
1. Silver, or money. [ Archaic]

2. (Fig. & Poet.) Whiteness; anything that is white.

The polished argent of her breast.
Tennyson.

3. (Her.) The white color in coats of arms, intended to represent silver, or, figuratively, purity, innocence, beauty, or gentleness; -- represented in engraving by a plain white surface. Weale.

Argent adjective Made of silver; of a silvery color; white; shining.

Yonder argent fields above.
Pope.

Argental adjective Of or pertaining to silver; resembling, containing, or combined with, silver.

Argentalium noun [ New Latin ; Latin argen tum silver + English al uminium.] A (patented) alloy of aluminium and silver, with a density of about 2.9.

Argentamine noun Also - min [ Latin argentum silver + English amine .] (Medicine) A solution of silver phosphate in an aqueous solution of ethylene diamine, used as an antiseptic astringent and as a disinfectant.

Argentan noun An alloy of nickel with copper and zinc; German silver.

Argentate adjective [ Latin argentatus silvered.] (Botany) Silvery white. Gray.