Definition of Cretaceous

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Currently available definitions
Cretaceous in English
Noun
  1. from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants
Adjective
  1. of or relating to or denoting the third period of the Mesozoic era
  2. abounding in chalk
Nearby
crestless wave crestfallen cretaceous cretaceous period cretan