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Triassic

UK:^*^*UK and possibly other pronunciationsUK and possibly other pronunciations/traɪˈæsɪk/US:USA pronunciation: respellingUSA pronunciation: respelling(trī as′ik)

Tri•as•sic (trī as′ik),USA pronunciation [Geol.]
adj.

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.

Greek triás; see triad) + -ic
German
Trias the three-part series of strata characterizing the period (1835–45

Collins Concise English Dictionary © HarperCollins Publishers::

Triassic /traɪˈæsɪk/ adj

of, denoting, or formed in the first period of the Mesozoic era that lasted for 42 million years and during which reptiles flourished

the Triassic, Trias ⇒ the Triassic period or rock system

Etymology: 19th Century: from Latin trias triad, with reference to the three subdivisions

'Triassic' also found in these entries (note: many are not synonyms or translations):

Jurassic - Mesozoic - Permian - thecodont - labyrinthodont - post-Triassic - protoavis - therapsid

In Lists: Geologic timeline, Geologic timeline, more...

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Triassic