- coelurosaur
[coelurosaur 词源字典]
- "A small, slender bipedal carnivorous dinosaur with long forelimbs, believed to be an evolutionary ancestor of birds", 1950s: from Greek koilos 'hollow' + oura 'tail' + sauros 'lizard'.[coelurosaur etymology, coelurosaur origin, 英语词源]