Search Result for "protomammal": 
Wordnet 3.0

NOUN (1)

1. probably warm-blooded; considered direct ancestor of mammals;
[syn: therapsid, protomammal]



WordNet (r) 3.0 (2006):

protomammal
    n 1: probably warm-blooded; considered direct ancestor of
         mammals [syn: therapsid, protomammal]