A genus of large bipedal carnivorous dinosaurs of the Cretaceous period, characterized by long dorsal spines and an elongated snout; (also spinosaurus) a dinosaur of this genus.
Origin
1920s. From scientific Latin Spinosaurus from spino- + -saurus.
Definition of Spinosaurus in US English:
Spinosaurus
nounˌspʌɪnəˈsɔːrəs
A genus of large bipedal carnivorous dinosaurs of the Cretaceous period, characterized by long dorsal spines and an elongated snout; (also spinosaurus) a dinosaur of this genus.
Origin
1920s. From scientific Latin Spinosaurus from spino- + -saurus.