cretaceous
/kri'teiʃәs/
📖 中文释义
- a. 白垩系的, 白垩纪的
- n. 白垩纪, 白垩系
🔗 释义中的汉语词
📘 English Definition（英文释义）
- n. from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants
- a. abounding in chalk
- a. of or relating to or denoting the third period of the Mesozoic era