DIMETRODON


Meaning of DIMETRODON in English

[ dʌɪ'mi:trədɒn ]

■ noun a large fossil carnivorous mammal-like reptile of the Permian period, with long spines on its back supporting a sail-like crest.

Origin

mod. L., from di- 'twice' + Gk metron 'measure' + odous , odont- 'tooth' (taken in the sense 'two long teeth').

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.