[trʌɪˈasɪk], (Adjective)

Definitions:
- relating to or denoting the earliest period of the Mesozoic era, between the Permian and Jurassic periods
(e.g: fossil remains of a small Triassic reptile have been found)


Phrases:

Origin:
mid 19th century: from late Latin trias (see triad), because the strata are divisible into three groups, + -ic

[trʌɪˈasɪk], (Noun)

Definitions:
- the earliest period of the Mesozoic era, between the Permian and Jurassic periods, or the system of rocks deposited during it
(e.g: most modern groups of invertebrates also appeared during the Triassic)


Phrases:

Origin:
mid 19th century: from late Latin trias (see triad), because the strata are divisible into three groups, + -ic