Any of various extinct marine reptiles of the group Ichthyosauria or Ichthyopterygia of the Mesozoic Era, having a long flexible body with fins and an elongated toothed snout.
[From New Latin Ichthyosaurus, type genus of the group : Greek ikhthuo-, ichthyo- + Greek sauros, lizard.]
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
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