See Also: triassic(medicine)
Triassic(dictionary)
Permo-Triassic(dictionary)
Triassic Period(encyclopedia)

Triassic (iou)



Triassic adjective & noun. M19.
[from TRIAS + -IC.]
Geology.
A. adjective. Designating or pertaining to the first period of the Mesozoic era, following the Permian and preceding the Jurassic, characterized by the rise of ammonites, dinosaurs, and modern corals. M19.
b. noun. The Triassic period; the system of rocks dating from this time, the Trias. M19.