'ictodosaur' definitions:
Definition of 'ictodosaur'
(from WordNet)
noun
Intermediate in form between the therapsids and most primitive true mammals
Definition of 'ictodosaur'
From: GCIDE
- ictodosaur \ictodosaur\ n. An extinct reptile intermediate in form between the therapsids and most primitive true mammals. [WordNet 1.5]