gallimimus /ˌɡalɪˈmʌɪməs
/ ▸ noun an ostrich dinosaur of the late Cretaceous period. Genus Gallimimus, infraorder Ornithomimosauria, suborder Theropoda.
– ORIGIN modern Latin, from Latin galli ‘of a cockerel’ (genitive of gallus) + mimus ‘mime, pretence’.