Triassic
/tɹaɪˈæs.ɪk/ adjective, proper noun
- adjective Of or from the geologic strata above the Permian and below the Jurassic; of or belonging to the period 250 to 200 million years ago when these strata were laid down.
- proper noun (geology) A geologic period within the Mesozoic era, comprising lower, middle and upper epochs from about 250 to 200 million years ago.
Synonyms
Etymology
From Trias (“three-layered geologic strata between the Permian and Jurassic”) < German Trias < Ancient Greek τριάς (triás, “triad”), + -ic. Coined in 1841 by geologist Friedrich August von Alberti (1795–1878).
Webster’s 1913
- adjective Of the age of, or pertaining to, the Trias.
- adjective The Triassic formation.
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “Triassic”, CC BY-SA 4.0. Details