triassic Meaning, Definition & Usage
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noun from 230 million to 190 million years ago; dinosaurs, marine reptiles; volcanic activity
Triassic period.
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adjective of or relating to or denoting the first period of the Mesozoic era
WordNet
Tri*as"sic adjective
Definitions
(Geol.) Of the age of, or pertaining to, the Trias. --n. The Triassic formation.
