Definify.com
Webster 1913 Edition
Ichthyosaurian
Ichˊthy-o-sau′ri-an
,Adj.
 (Paleon.) 
Of or pertaining to the Ichthyosauria. 
– Noun.
 One of the Ichthyosauria.
 Definition 2025
ichthyosaurian
ichthyosaurian
English
Adjective
ichthyosaurian (comparative more ichthyosaurian, superlative most ichthyosaurian)
- (paleontology) Of or relating to the Ichthyosauria.
 
Noun
ichthyosaurian (plural ichthyosaurians)
- (paleontology) Any of the Ichthyosauria.