dimetrodon
English Thesaurus
1. carnivorous dinosaur of the Permian in North America having a crest or dorsal sail (noun.animal)
| hypernym | : | synapsid, synapsid reptile, |
| definition | : | extinct reptile having a single pair of lateral temporal openings in the skull (noun.animal) |
| member meronym | : | genus dimetrodon, |
| definition | : | a reptile genus of Pelycosauria (noun.animal) |
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