velociraptorPronunciation: /vɪˌlɒsɪˈraptə/Definition of velociraptor noun a small dromaeosaurid dinosaur of the late Cretaceous period. Genus Velociraptor, family Dromaeosauridae, suborder Theropoda Origin:modern Latin, from Latin velox, veloc- 'swift' + raptorvelociraptor in other Oxford dictionaries Definition of velociraptor in the US English dictionary