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1 semidiameter
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2 radius
I. B.In partic.1.A spoke of a wheel, Plin. 16, 40, 76, § 206; Verg. G. 2, 444; id. A. 6, 616; Ov. M. 2, 108; 2, 317; Val. Fl. 6, 414:2.inter radios rotarum,
Curt. 4, 9, 5; Plin. 16, 40, 76, § 206.—In mathematics,a.A staff, rod, for measuring, etc., Cic. Tusc. 5, 23, 64; Verg. E. 3, 41; id. A. 6, 850; Macr. S. 7, 2; Tert. Idol. 9. —b.A semidiameter, radius of a circle, Cic. Univ. 6. —3.In weaving, a shuttle, Ov. M. 6, 56; 132; Lucr. 5, 1352; Verg. A. 9, 476.—4.In zoology,a.The spur of many kinds of birds, Plin. 11, 47, 107, § 257;b.esp. of the cock,
id. 30, 11, 29, § 97. —The sting above the tail of the fish pastinaca, Plin. 9, 48, 72, § 155; 32, 2, 12, § 25. —5.In botany, a kind of long olive, Verg. G. 2, 86; Col. 5, 8, 4; id. Arb. 17, 3; Plin. 15, 3, 4, § 13. A sub-species of the same, called radius major, Cato, R. R. 6, 1; Varr. R. R. 1, 24.—6.In anatomy, the radius, the exterior bone of the forearm, Gr. kerkis, Cels. 8, 1. —7.Radius virilis = membrum virile, Cael. Aur. Acut. 3, 14, 115.—II.A beam or ray of any shining object;of the sun,
Plaut. Mil. 1, 1, 2; Lucr. 1, 48; 2, 117; Cic. Fin. 5, 24, 71; Verg. A. 4, 119; 7, 25; Tert. Res. Carn. 47;of lightning,
Verg. A. 8, 429; Val. Fl. 6, 55;of the eyes,
Gell. 5, 16, 2;of the halo around the heads of divine or deified personages: aurati,
Verg. A. 12, 163; cf. radio, II.
См. также в других словарях:
Semidiameter — Sem i*di*am e*ter, n. (Math.) Half of a diameter; a right line, or the length of a right line, drawn from the center of a circle, a sphere, or other curved figure, to its circumference or periphery; a radius. [1913 Webster] … The Collaborative International Dictionary of English
semidiameter — [sem΄idī am′ət ər] n. 1. half a diameter; radius 2. Astron. half the angular diameter of a celestial body with a visible disk, as the moon … English World dictionary
Semidiameter — In geometry, the semidiameter or semi diameter of a set of points may be one half of its diameter; or, sometimes, one half of its extent along a particular direction.pecial casesThe semi diameter of a sphere, circle, or interval is the same thing … Wikipedia
semidiameter — noun Date: 14th century radius; specifically the apparent radius of a generally spherical celestial body … New Collegiate Dictionary
semidiameter — /sem ee duy am i teuhr, sem uy /, n. half of a diameter; radius. [1545 55; SEMI + DIAMETER] * * * … Universalium
semidiameter — noun The apparent radius of a star etc, when viewed from Earth … Wiktionary
semidiameter — [ˌsɛmɪdʌɪ amɪtə] noun Geometry half of a diameter … English new terms dictionary
semidiameter — semi·diameter … English syllables
semidiameter — sem•i•di•am•e•ter [[t]ˌsɛm i daɪˈæm ɪ tər, ˌsɛm aɪ [/t]] n. math. half of a diameter … From formal English to slang
semidiameter — /ˌsɛmidaɪˈæmətə/ (say .semeeduy amuhtuh) noun 1. the half of a diameter; a radius. 2. half the angular diameter of a celestial body …
semidiameter — n. half of a diameter. Etymology: LL (as SEMI , DIAMETER) … Useful english dictionary
