Triassic
/trˌaɪˈæˌsɪk/
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Definition
(adj/noun) Relating to the Triassic geologic period.
Sentence Examples
The Permian–Triassic extinction event occurred about 250M years ago.
Dinosaurs first appeared earlier in the Triassic Period, roughly 230 million years ago.
CEFR Practice Quiz
The ____ period was a geological time that lasted for millions of years and saw the rise of the first dinosaurs today.