[1] : The Collaborative International Dictionary of English v.0.48

ichthyosaur \ich"thyosaur\, n. cf. f. ichthyosaure.
   paleon.
   one of the ichthyosaura.
   1913 webster

[2] : WordNet (r) 2.0

ichthyosaur
     n : any of several marine reptiles of the mesozoic having a body
         like a porpoise with dorsal and tail fins and
         paddle-shaped limbs
     also: ichthyosauruses pl
see also:
ichthyosauruses 

Ichthyosaur >> I Words
Ichthyosaur, definition of term: Ichthyosaur
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