English adjective: cretaceous | |||
1. | cretaceous abounding in chalk | ||
2. | Cretaceous of or relating to or denoting the third period of the Mesozoic era | ||
English noun: Cretaceous | |||
1. | Cretaceous (time) from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants | ||
Synonyms | Cretaceous period | ||
Instance hypernym | geological period, period | ||
Part meronym | Age of Reptiles, Mesozoic, Mesozoic era | ||