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Meaning of word cretaceous from English dictionary with examples, synonyms and antonyms.

cretaceous   noun

Meaning : From 135 million to 63 million years ago. End of the age of reptiles. Appearance of modern insects and flowering plants.

Synonyms : cretaceous period

cretaceous   adjective

Meaning : Abounding in chalk.

Meaning : Of or relating to or denoting the third period of the Mesozoic era.