Mesozoic

English dictionary entry

Meanings

adj
  1. Of a geologic era within the Phanerozoic eon that comprises the Triassic, Jurassic and Cretaceous periods from about 230 to 65 million years ago, when life on earth was dominated by reptiles.
name
  1. The Mesozoic era.

Word forms

Mesozoic more Mesozoic most Mesozoic

Etymology

From meso- + -zoic.

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