1Of, relating to, or denoting the last period of the Paleozoic era, between the Carboniferous and Triassic periods. See also Permo–Triassic.
More example sentences
- Uppermost Permian and Triassic terrestrial sediments conformably overlie the terminal volcanic rocks.
- Similar features have been seen in Permian and Triassic conifer trunks from Antarctica and North America.
- It happened 252 million years ago, at the boundary of the Permian and Triassic geological ages.
1.1 (as noun the Permian) The Permian period or the system of rocks deposited during it.
late 16th century: from the name of the Russian province Perm, from the extensive development of such strata there.
Definition of Permian in:
- The British & World English dictionary