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the radius

  • 1 radius

    rădĭus, ii, m. [cf.: radix, ramus], a staff, rod.
    I.
    In gen.:

    acuti radii immissi,

    stakes, Liv. 33, 5, 11:

    ferreus,

    Plin. 10, 42, 58, § 117.—
    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:

    inter radios rotarum,

    Curt. 4, 9, 5; Plin. 16, 40, 76, § 206.—
    2.
    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;

    esp. of the cock,

    id. 30, 11, 29, § 97. —
    b.
    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.

    Lewis & Short latin dictionary > radius

  • 2 radio

    rădĭo, āvi, ātum, 1 [radius].
    * I.
    (Acc. to radius, I. B. 1.) V. a., to furnish with spokes:

    rota radiata,

    Varr. R. R. 3, 5, 15.—
    II.
    (Acc. to radius, II.) V. a. and n. (mostly poet. and in post-Aug. prose).
    A.
    Act., to furnish with beams, make beaming, irradiate; only in pass., to be irradiated, to gleam, emit beams. — Lit.:

    galeae gemmis radientur et auro,

    Ov. P. 3, 4, 103. — Esp. freq. in the part. perf. and P. a.: rădĭātus, a, um, furnished with rays, irradiated, shining:

    miles ut adverso Phoebi radiatus ab ictu,

    irradiated, Luc. 7, 214:

    rubent radiati lumina solis,

    shining, Lucr. 5, 462:

    sol,

    Cic. Ac. 2, 41, 126; cf. also: orbis flammeus solis, Att. ap. Cic. Div. 1, 22, 44: lumen (solis), Poët. ap. Cic. de Or. 3, 40, 162; Ov. M. 4, 193:

    insigne diei (i. e. sol),

    Lucr. 5, 699: caput, surrounded with a halo or nimbus (the attribute of deities and deified personages), Plin. Pan. 52; cf.

    corona,

    Suet. Aug. 94 med.:

    splendor radiatus lampade solis,

    Sil. 7, 143.—
    B.
    Neutr., to emit beams, to beam, shine, radiate.
    1.
    Lit.:

    felium in tenebris fulgent radiantque oculi,

    Plin. 11, 37, 55, § 150; cf. Ov. Am. 3, 3, 9; id. M. 2, 4:

    miles radiabat in armis,

    Prop. 4 (5), 1, 27; Sil. 8, 468: radiabunt tempora nati (of the halo of deified personages, v. supra, A.), Sil. 3, 629; 2, 586. — Freq. in part. pres.: rădĭans, beaming, shining:

    lumina solis,

    Ov. Tr. 2, 325:

    sidera,

    Lucr. 4, 214; Ov. M. 7, 325; 9, 272:

    Aquarius,

    Cic. Arat. 172:

    luna,

    Verg. A. 8, 23:

    aurum,

    Ov. M. 4, 636; cf.:

    galea claro ab auro,

    id. ib. 13, 105:

    templa auro,

    id. A. A. 3, 451:

    arma,

    Verg. A. 8, 616:

    carbunculi pinnato fulgore,

    Plin. 37, 7, 25, § 93. —
    2.
    Trop., to shine, radiate:

    quasi de industriă prospera ejus (fortuna) adversis radiaret,

    Flor. 4, 2, 30 Halm. (Duker, radiarentur):

    ipsi inter medios roseā radiante juventā,

    Val. Fl. 8, 257:

    constitutio, quae inter imperiales radiat sanctiones,

    Just. Inst. 1, 5, 3: radiantia signa, asterisks, Hier. praef. in Psa.

    Lewis & Short latin dictionary > radio

  • 3 mico

    mĭco, ŭi ( pf. subj. micaverit, Sol. 53), 1, v. n. [Sanscr. mish-, to wink], to move quickly to and fro, to have a vibrating or tremulous motion, to quiver, shake, tremble, e. g. of the pulse; to beat, palpitate; to spring forth, of fountains; of the tremulous rays of the stars, to twinkle, sparkle, glitter, gleam, flash (class.).
    I.
    In gen.:

    venae et arteriae micare non desinunt,

    Cic. N. D. 2, 9, 24:

    linguis micat ore trisulcis,

    Verg. G. 3, 439:

    gladii,

    Liv. 6, 12, 9:

    corque timore micat,

    beats, palpitates, Ov. F. 3, 36:

    nec audissem corde micante tubam,

    for the beating, Prop. 1, 10, 12:

    metu micuere sinus,

    Ov. H. 1, 45:

    et modo cervicem, modo crura micantia captat,

    id. M. 9, 37:

    noctuarum genus, quibus pluma aurium modo micat,

    Plin. 29, 6, 38, § 117: semianimesque micant (culi (of a head cut off), twitch, Enn. ap. Serv. Verg. A. 10, 396 (Ann. v. 463 Vahl.):

    digiti (of a hand cut off),

    Verg. A. 10, 396:

    auribus (of a horse),

    id. G. 3, 84:

    micuere fontes,

    spring forth, Luc. 4, 300:

    citatus vulnere angusto micat (cruor),

    Sen. Oedip. 345:

    fulmina etiam sic undique micabant, ut peti viderentur corpora,

    flashed in every direction, Liv. 40, 58, 5:

    inter horrendos fragores micare ignes,

    id. 21, 58, 5:

    tum micent gladii,

    id. 6, 12, 9:

    eo ferocior inlatus hostis urgere scutis, micare gladiis,

    id. 4, 37, 10.—
    II.
    In partic.
    A.
    To raise suddenly some of the fingers and let another instantly guess their number, which was practised both as a game of chance (called in Italy mora) and as a mode of deciding doubtful matters:

    micare est sortiri digitis,

    Non. 347, 27: micandum erit cum Graeco, utrum... an, Varr. ap. Non. 347, 30:

    quid enim sors est? item propemodum, quod micare, quod talos jacere,

    Cic. Div. 2, 41, 85:

    quasi sorte, aut micando,

    id. Off. 3, 23, 90:

    patrem et filium pro vita rogantes sortiri vel micare jussisse,

    Suet. Aug. 13.—Prov.:

    dignus est, quicum in tenebris mices, said of a thoroughly honest man, since it would be easy to cheat in the dark,

    Cic. Off. 3, 19, 77:

    cum quo audacter posses in tenebris micare,

    Petr. 44.—Also in contracts: RATIO DOCVIT, CONSVETVDINE MICANDI SVMMOTA, SVB EXAGIO POTIVS PECORA VENDERE, QVAM DIGITIS CONCLVDENTIBVS TRADERE, Edict. in Inscr. Orell. 3166.—
    B.
    Poet. of the brilliancy of the stars, of the eyes, etc., to flash, gleam, beam, shine, be bright:

    micat inter omnes Julium sidus,

    Hor. C. 1, 12, 46:

    micat ignibus aether,

    Verg. A. 1, 90. oculis micat ignis, fire flashes from his eyes, id. ib. 12, 102:

    ex oculis micat acrius ardor,

    Lucr. 3, 289:

    micant ardorem orbes luminis,

    Verg. Cul. 220:

    genitor circum caput omne micantes Deposuit radios,

    Ov. M. 2, 40:

    celeri micuerunt nubila flamma,

    id. Tr. 1, 2, 45.—Hence, mĭcans, antis, P. a., twinkling, sparkling, glittering, gleaming, flashing, glowing:

    stella micans radiis Arcturus, Cic. Div. Poët. 2, 42, 110: micantes stellae,

    Ov. M. 7, 100; Vulg. Job, 38, 31:

    oculos circumtulit igne micantes,

    Ov. M. 15, 674:

    vultus,

    Liv. 6, 13.— Comp.:

    radius sole micantior,

    Prud. Cath. 5, 44.

    Lewis & Short latin dictionary > mico

  • 4 acūtus

        acūtus adj. with comp. and sup.    [P. of acuo], sharpened, pointed, sharp, cutting: sudes, Cs.: ferrum, H.: aures, pointed, H.: acuta leto Saxa (i. e. ad letum dandum), H.—Fig., to the senses, sharp, pungent, shrill: sonus acutissimus, highest treble: aera, shrill, H.: stridor, H.: sol, oppressive, H.: morbus, violent, H. — Subst: acuta belli, violent calamities, H.— Adv: resonare acutum, shrilly, H. —Of the senses, keen, sharp: oculi: nares, i. e. rigid censoriousness, H.—Of the mind, keen, acute, discerning, penetrating, intelligent, sagacious, cunning: si qui acutiores in contione steterunt: hominum genus: studia, i. e. requiring a keen mind: homo ad fraudem, N.— Adv: acutum cernis, keenly, H.
    * * *
    I
    acuta -um, acutior -or -us, acutissimus -a -um ADJ
    sharp, sharpened, pointed/tapering; severe; glaring; acute, wise; high-pitched
    II
    acuta, acutum ADJ
    of small radius; acute (angle)

    Latin-English dictionary > acūtus

  • 5 ramus

    rāmus, i, m. [for rad-mus; Sanscr. root vardh, crescere; cf.: radix, radius], a branch, bough, twig (cf.: surculus, termes).
    I.
    Lit.:

    in quibus (arboribus) non truncus, non rami, non folia sunt denique, nisi, etc.,

    Cic. de Or. 3, 46, 179; Enn. ap. Cic. Tusc. 1, 28, 69 (Trag. v. 194 Vahl.):

    qui praetereuntes ramum defringerent arboris,

    Cic. Caecin. 21, 60:

    sub ramis arboris,

    Lucr. 2, 30; 5, 1393:

    decidere falcibus ramos,

    id. 5, 936 et saep.:

    tempora cingite ramis,

    Verg. A. 5, 71; 8, 286; Val. Fl. 6, 296; Hor. C. 2, 15, 9; id. S. 1, 5, 81:

    ingens ramorum umbra,

    Verg. G. 2, 489; id. A. 6, 808.— Poet., for a tree, Verg. A. 3, 650; for the fruit of trees, id. ib. 8, 318; in partic., for frankincense twigs, Claud. III. Cons. Hon. 211. —
    B.
    Transf., of things having a branching form.
    1.
    A branch of a stag ' s antlers, Caes. B. G. 6, 26, 2.—
    2.
    A spur of a mountain chain, Plin. 6, 27, 31, § 134. —
    3.
    A club, Prop. 1, 1, 13; 4 (5), 9, 15.—
    4.
    = membrum virile, Nov. ap. Non. 116, 26.—
    5.
    An arm or mouth of a river:

    multos ignobiles ramos porrigit (Nilus),

    Sen. Q. N. 4, 2, 11.—
    6.
    A branch or arm of the Greek letter g, used by Pythagoras as a symbol of the two paths of life, leading to virtue and vice, Aus. Idyll. 12, 9;

    hence called Samii rami,

    Pers. 3, 56.—
    II.
    Trop., a branch:

    ramos amputare miseriarum,

    Cic. Tusc. 3, 6, 13:

    fortitudo, cujus patientia et perpessio et tolerantia rami sunt,

    Sen. Ep. 67, 10.—Of a branch of consanguinity, Pers. 3, 28.

    Lewis & Short latin dictionary > ramus

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