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English definition of “Triassic”

Triassic

adjective     /traɪˈæs.ɪk/ specialized
from or referring to the period of time between around 245 and 208 million years ago, in which dinosaurs (= large reptiles that no longer exist) first appeared: the Triassic period Triassic plantsSpecific periods of time the Triassic     noun the Triassic periodSpecific periods of time
(Definition of Triassic adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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