| 释义 |
pro·mammal
\(ˈ)prō+\ noun
Etymology: pro- (I) + mammal
1. : an extinct reptile exhibiting definite mammalian characteristics; especially : a synapsid reptile
2.
a. : a primitive mammal (as a platypus) not exhibiting all the characteristics of the group
b. : one of the Protomammalia |