ichthyosaur

Từ điển WordNet v3.1 - WordNet Dictionary

noun

any of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbs
• Hypernyms:
archosaur, archosaurian, archosaurian reptile
• Hyponyms:
ichthyosaurus, stenopterygius, Stenopterygius quadrisicissus
• Member Holonyms:
Ichthyosauria, order Ichthyosauria