noun see: fierce Date: 1912 any of an order (Therapsida) of Permian and Triassic syrapsid reptiles considered ancestors of the mammals, ~ adjective
THERAPSID
Meaning of THERAPSID in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012