Part 337

Ar`ach*nol"o*gy (&?;), n. [Gr. &?; spider + -logy.] The department of zoölogy which treats of spiders and other Arachnida.

A`ræ*om"e*ter (?; 277). See Areometer.

A*ræ"o*style (&?;), a. & n. [L. araeostylos, Gr. &?;; &?; at intervals + &?; pillar, column.] (Arch.) See Intercolumniation.

A*ræ`o*sys"tyle (&?;), a. & n. [Gr. &?; as intervals + &?;. See Systyle.] (Arch.) See Intercolumniation.

Ar`a*go*nese (&?;), a. Of or pertaining to Aragon, in Spain, or to its inhabitants. -- n. sing. & pl. A native or natives of Aragon, in Spain.

A*rag"o*nite (&?;), n. [From Aragon, in Spain.] (Min.) A mineral identical in composition with calcite or carbonate of lime, but differing from it in its crystalline form and some of its physical characters.

||A`ra*gua"to (&?;), n. [Native name.] (Zoöl.) A South American monkey, the ursine howler (Mycetes ursinus). See Howler, n., 2.

A*raise"" (&?;), v. t. To raise. [Obs.] Shak.

Ar"ak (&?;), n. Same as Arrack.

{ Ar`a*mæan, Ar`a*me"an } (&?;), a. [L. Aramaeus, Gr. &?;, fr. Heb. Arm, i. e. Highland, a name given to Syria and Mesopotamia.] Of or pertaining to the Syrians and Chaldeans, or to their language; Aramaic. -- n. A native of Aram.

Ar`a*ma"ic (&?;), a. [See Aramæan, a.] Pertaining to Aram, or to the territory, inhabitants, language, or literature of Syria and Mesopotamia; Aramæan; -- specifically applied to the northern branch of the Semitic family of languages, including Syriac and Chaldee. -- n. The Aramaic language.

Ar`a*ma"ism (&?;), n. An idiom of the Aramaic.

{ ||Ar`a*ne"i*da (&?;), ||Ar`a*ne*oid"e*a (&?;), } n. pl. [NL.] (Zoöl.) See Araneina.

Ar`a*ne"i*dan (&?;), a. (Zoöl.) Of or pertaining to the Araneina or spiders. -- n. One of the Araneina; a spider.

Ar`a*ne"i*form (&?;) a. [L. aranea spider + -form.] (Zoöl.) Having the form of a spider. Kirby.

||A*ra`ne*i"na (*r`n*"n), n. pl. [NL., fr. L. aranea spider.] (Zoöl.) The order of Arachnida that includes the spiders.

They have mandibles, modified as poison fangs, leglike palpi, simple eyes, abdomen without segments, and spinnerets for spinning a web. They breathe by pulmonary sacs and tracheæ in the abdomen. See Illustration in Appendix.

A*ra"ne*ose` (*r"n*s`), a. [L. araneosus.] Of the aspect of a spider's web; arachnoid.

A*ra"ne*ous (-s), a. [L. araneosus, fr. aranea spider, spider's web.] Cobweblike; extremely thin and delicate, like a cobweb; as, the araneous membrane of the eye. See Arachnoid. Derham.

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||A*ran"go (*r"g), n.; pl. Arangoes (-gz). [The native name.] A bead of rough carnelian. Arangoes were formerly imported from Bombay for use in the African slave trade. McCulloch.

||A`ra*pai"ma (&?;), n. [Prob. native name.] (Zoöl.) A large fresh-water food fish of South America.

||A*ra"ra (&?;), n. [Native name.] (Zoöl.) The palm (or great black) cockatoo, of Australia (Microglossus aterrimus).

A*ra"tion (&?;), n. [L. aratio, fr. arare to plow.] Plowing; tillage. [R.]

Lands are said to be in a state of aration when they are under tillage. Brande.

Ar"a*to*ry (&?;), a. [LL. aratorius: cf. F. aratoire.] Contributing to tillage.

||Ar`au*ca"ri*a (&?;), n. [Araucania, a territory south of Chili.] (Bot.) 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.

Ar`au*ca"ri*an (&?;), a. Relating to, or of the nature of, the Araucaria. The earliest conifers in geological history were mostly Araucarian. Dana.