Lewis Short
(adj.Subst.) : bĭpēs (˘˘, Aus. Idyll. 11, 39;
* Neutr. plur. bipedia, Aug. Mor. Manich. 9), pĕdis, adj. bis-pes, two-footed (mostly poet. or in post-Aug. prose): equi,Verg. G. 4, 389: mensa,Mart. 12, 32, 11: Aegyptii mures bipedes ambulant,on two feet,Plin. 10, 65, 85, § 187: alium bipedem sibi quaerit asellum,two legged ass,Juv. 9, 92: animal genus, mortale species, terrenum vel bipes differens,Quint. 5, 10, 61.
* Subst., mostly contemptuously, of men: hoc ministro omnium non bipedum solum sed etiam quadripedum impurissimo,Cic. Dom. 18, 48: Regulus omnium bipedum nequissimus, as great a rogue as walks on two legs, Modest. ap. Plin. Ep. 1, 5, 14; Cic. Dom. 18, 48; Lampr. Alex. Sev. 9; cf.: bipes asellus, of a simple man,Juv. 9, 92: replevit eam (terram) bipedibus et quadrupedibus. Vulg. Baruch. 3, 32.
Charlton T. Lewis, Charles Short, A Latin Dictionary