Triassic: Meaning and Definition of
Pronunciation: (trī-as'ik), [key]
— Geol. Geol.
- noting or pertaining to a period of the Mesozoic Era, occurring from 230 to 190 million years ago and characterized by the advent of dinosaurs and coniferous forests. See table under geologic time.
- the Triassic Period or System.
- triassic (Thesaurus)