mouth (subs.) Copy link Outline I. Of men or animals1. os, ōris, n.2. rostrum (the beak of a bird; snout of an animal, as the pig, goat, etc.)II. Of things1. os (by analogy with the human mouth2. ostium (of rivers, etc.)3. căput, ĭtis, n. (more strictly, the source of a river, but also found to denote the other extremity)4. ădĭtus, ūs (access, entrance) • mouth (subs.): I. Of men or animals: 1. os, ōris, n.: the m. is admirably fitted for receiving all these (food, drink, air), ad haec omnia percipienda os est aptissimum, Cic. N. D. 2, 54, 134: with loaded m. (of the mother bird), ore pleno, Juv. 10, 232: Hor. (But os is often used in wider sense: v. face, I. 2.) Phr.: 'tis in everybody's m. (common talk), in ore est omni populo, Ter. Ad. 1, 2, 13.: so, habere aliquid in ore, to have it perpetually in one's m. (be ever talking of it), Cic. Fam. 6, 18, extr. 2. rostrum (the beak of a bird; snout of an animal, as the pig, goat, etc.): v. beak, snout. Faceté, of the m. (muzzle or snout) of a human being, Pl. Men. 1, 1, 13. Phr.: to open a broad m., rictum diducere, Juv. 10, 230: not to open the mouth too wide (in speaking), ne immodicus hiatus rictum distendat (al. discindat), Quint. 1, 11, 9: generally, to open the m., hiare, Juv. 10, 231: Hor.: so, with m. wide open, hianti ore, Curt. 4, 16, med.: to look at a horse's m., equi dentes inspicere (v. horse, Phr.): to shut one's m. about anything, tacere, reticere (keep a thing back): also mussare, Pl. Aul. 2, 1, 12; mussitare, id. Mil. 2, 5, 67 (v. silent, to be). II. Of things: 1. os (by analogy with the human mouth: any mouth-like aperture): an aperture with a wide m., lato o. fenestra, Virg. Aen. 2, 482: vessels with a small m., vascula o. angusti, Quint. 1, 2, 28: also of rivers, etc.: in the very m. of the harbour, in ipsu aditu atque ore portus, Cic. Verr. 5, 12, 30: at the m. of the Tiber (a city was built), in ore Tiberis, Liv. 1, 33, extr.: Tac. 2. ostium (of rivers, etc.): the m. of the Rhone, o. Rhodani, Caes. B. C. 2, 1: the m. of a harbour, o. [aditusque] portus, Cic. Verr. 4, 53, 118. 3. căput, ĭtis, n. (more strictly, the source of a river, but also found to denote the other extremity): it flows into the sea by many m.s, multis c. in oceanum influit, Caes. B. C. 4, 10, extr. 4. ădĭtus, ūs (access, entrance): Virg. G. 4, 35 (of the m.s of hives): cf. supr. (II., 1). Phr.: the m. of a hive, foramen quo exitus et introitus datur (apibus), Col. 9, 7, ad fin. (R. and A.): but a little above, ora cavearum, in same sense. See also, aperture, orifice.