con-căvus, a, um,
I adj., hollow, concave; arched, vaulted; bent, curved : cymbala, Lucr. 2, 619; cf.: concava aera, Ov. M. 4, 30: loca terrae, Lucr. 5, 1255: altitudines speluncarum, Cic. N. D. 2, 39, 98: saxa, Verg. G. 4, 49: vallis, Ov. M. 8, 334: bracchia Cancri, id. ib. 10, 127; 15, 369: jugula, Cic. Fat. 5, 10: manus (opp. plana), Sen. Ep. 56, 1: dentes, Plin. 11, 37, 61, § 162: folia, id. 16, 24, 38, § 92: aqua, swelling , Ov. Tr. 1, 11, 20: puppis, id. F. 4, 276: vela, id. H. 6, 66: ulcus, Scrib. Comp. 238.—
II Subst.: con-căva , ōrum, n., hollow places, hollows (postclass.), Claud. III. Cons. Hon. 47; Lact. 7, 26.