Synonyms for cretaceous

Noun

1. Cretaceous, Cretaceous period, period, geological period

usage: from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants

Adjective

1. cretaceous

usage: abounding in chalk

2. cretaceous

usage: of or relating to the Cretaceous geologic era; "cretaceous rocks"