dimetrodon
/dʌɪˈmiːtrədɒn
/noun
A large fossil carnivorous mammal-like reptile of the Permian period, with long spines on its back supporting a sail-like crest.
- Genus Dimetrodon, order Pelycosauria, subclass Synapsida.
- I was inhaling ancient molecular effluvia of dimetrodons and plesiosaurs, pterodactyls and tyrannosauruses.
- But the iguanas in dinosaur costumes, super-sized dimetrodons, superimposed supposed menaces, don't cut it.
Origin
Modern Latin, from di- 'twice' + Greek metron 'measure' + odous, odont- 'tooth' (taken in the sense 'two long teeth').
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