adj.
Pronunciation: tr ī - ' a-sik
Function: adjective
Etymology: International Scientific Vocabulary, from Latin trias triad; from the three subdivisions of the European Triassic ― more at TRIAD
Date: 1841
: of, relating to, or being the earliest period of the Mesozoic era or the corresponding system of rocks marked by the first appearance of the dinosaurs ― see GEOLOGIC TIME table
– Triassic noun