Ichthyosaur

//ˈɪkθiəsɔːɹ// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Any fishlike marine reptiles of the extinct order †Ichthyosauria of the early Triassic to the late Cretaceous period, that had a body somewhat like a porpoise.

    "The most striking marine reptiles are the fishlike or porpoiselike ichthyosaurs."

  2. 2
    any of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbs wordnet

Synonyms

All synonyms
ichthyosaurusichthyosaurus

Example

More examples

"The most striking marine reptiles are the fishlike or porpoiselike ichthyosaurs."

Etymology

Borrowed from translingual Ichthyosaurus, equivalent to Ancient Greek ἰχθύς (ikhthús, “fish”) + Ancient Greek σαῦρος (saûros, “lizard”).

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.