Ar`ach*noid"al (&?;), a. (Anat.) Pertaining to the arachnoid membrane; arachnoid.
||Ar`ach*noid"e*a (&?;), n. pl. [NL.] (Zoöl.) Same as Arachnida.
A*rach`no*log"ic*al (&?;), a. Of or pertaining to arachnology.
Ar`ach*nol"o*gist (&?;), n. One who is versed in, or studies, arachnology.
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).