Lewis & Short

gĕmĭnus, a, um, adj. [cf.: gener, genui (gigno)], born at the same time, twin-born, twin- (class.).

  1. I. Lit.
    1. A. Adj.: tibi sunt gemini et trigemini filii, Plaut. Mil. 3, 1, 123: filios parere, id. Am. 5, 1, 36: C. et L. Fabricii fratres gemini fuerunt ex municipio Aletrinati, twin-brothers, Cic. Clu. 16, 46; v. frater: sorores, Ov. M. 4, 774; Hor. C. 4, 7, 5; cf.: soror gemina germana, Plaut. Mil. 2, 4, 30: pueri, Verg. A. 8, 631: proles, id. ib. 1, 274: dei (i. e. Apollo and Diana), Enn. ap. Varr. L. L. 7, § 16 Müll. (Trag. v. 425 Vahl.): partus, Liv. 1, 4, 2: Castor, i. e. Castor and Pollux, Ov. A. A. 1, 746; cf. Pollux, Hor. C. 3, 29, 64: nec gemino bellum Trojanum orditur ab ovo, i. e. from Helen, the twin-daughter of Leda, id. A. P. 147: fratres, Amphion atque Zethus, id. Ep. 1, 18, 41: Quirini, i. e. Romulus and Remus, Juv. 11, 105.
      Comically in the sup.: To. Hic ejus geminust frater. Do. Hicine’st? To. Ac geminissimus, Plaut. Pers. 5, 2, 49.
    2. B. Subst.: gĕmĭni, ōrum, m., twins: Servilii, qui gemini fuerunt … ut mater geminos internoscit consuetudine oculorum, sic, etc., Cic. Ac. 2, 18, 56 sq.; cf.: geminorum formas esse similes, id. Div. 2, 43, 90; Liv. 1, 6, 4.
      Of beasts: (asina) raro geminos parit, Plin. 8, 43, 68, § 168.
      1. 2. In partic.
        1. a. Gemini, as a constellation, The Twins (Castor and Pollux; acc. to others, Apollo and Hercules), Plin. 18, 29, 69, § 281; Varr. R. R. 2, 1, 7; called also geminum astrum, Col. poët. 10, 312.
        2. b. Acc. to the Gr. δίδυμοι, the testicles, i. q. testiculi (late Lat.), Sol. 13; Amm. 16, 7.
  2. II. Transf.
    1. A. In gen., paired, double, two-fold, both, two, = duplex, duo: gemino lucernae lumine declarari, dissensionem et seditionem moveri, Cic. Div. 2, 58, 120; cf.: ex unis geminas mihi conficies nuptias, Ter. And. 4, 1, 51: et tripodes gemini, Verg. A. 9, 265: cum quaererent alii Numerium, alii Quintium, gemini nominis errore servatus est (Numerius Quintius), Cic. Sest. 38, 82: sunt geminae Somni portae, quarum altera, etc., Verg. A. 6, 894: scopuli, id. ib. 1, 162; cf.: vos, geminae voragines rei publicae, Cic. Pis. 18, 41: huc geminas nunc flecte acies, your pair of eyes, both eyes, Verg. A. 6, 788: tempora, id. ib. 5, 416: nares, id. G. 4, 300: cornua (Eridani), id. ib. 4, 371: manus, Mart. 10, 10, 10: pedes, Ov. F. 2, 154; for which: pes, id. A. A. 2, 644: geminae (vites), Col. 3, 2, 10 (for which: gemellae vites, Plin. 14, 2, 4, § 21): aliae (percussiones numerorum) sunt geminae, double, Cic. de Or. 3, 47, 182; cf.: geminis vocalibus, Quint. 1, 7, 14: M gemina, id. ib. 8: geminique tulit Chironis in antrum, double-formed (half man, half horse), Ov. M. 2, 630; 6, 126; cf.: corpus Tritonis (half man and half fish), Stat. S. 3, 2, 35: Cecrops (acc. to a myth, half man and half serpent, or half man and half woman; or else as Egyptian and Greek), Ov. M. 2, 555: GEMINA LEGIO, a double legion (formed out of two legions), epithet of the tenth legion in Hispania, Inscr. Orell. 72 sq.; 1214; 2090; 3376 al. (for which: gemella legio, Caes. B. C. 3, 4, 1; cf. Tac. H. 2, 58): cum geminis exsurgit mensa lucernis, seen double by one in drink, Juv. 6, 305.
    2. B. Resembling, similar, like, as twins: VOLO, MI FRATER, FRATERCULO TUO CREDAS: consorti quidem in lucris atque in furtis, gemino et simillimo nequitia, improbitate, audaciā, Cic. Verr. 2, 3, 66, § 155; cf.: Dolabella et Antonius … ecce tibi geminum in scelere par, a twin-pair, id. Phil. 11, 1, 2; Varr. L. L. 9, § 92: par est avaritia, similis improbitas, eadem impudentia, gemina audacia, Cic. Rosc. Am. 40, 118 fin.; cf. id. Rosc. Com. 18, 55: quae (memoria) est gemina litteraturae quodammodo et in dissimili genere persimilis, twin-sister, id. Part. 7, 26 (al. germana): illud vero geminum consiliis Catilinae et Lentuli, quod me domo mea expulistis, like, similar, id. Pis. 7, 16; cf.: ambobus geminus cupido laudis, Sil. 4, 99.