utahraptorPronunciation: /ˈjuːtɔːˌraptə, ˈjuːtə-/Definition of utahraptor noun a large dromaeosaurid dinosaur, the remains of which were discovered in Utah in 1992. It was twice the size of deinonychus. Genus Utahraptor, family Dromaeosauridae, suborder Theropoda Origin:modern Latin, from Utah + raptorutahraptor in other Oxford dictionaries Definition of utahraptor in the US English dictionary