Permian

Per·mi·an

P0201200 (pûr′mē-ən, pĕr′-)adj. Of, relating to, or being the period of geologic time from about 299 to 251 million years ago, the seventh and last period of the Paleozoic Era. The Permian Period is characterized by the formation of the supercontinent Pangaea, the first modern conifers, and the diversification of reptiles. It ended with the largest known mass extinction in the history of life. See Table at geologic time.n. The Permian Period.

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[After Perm Oblast, a region of west-central Russia.]

Permian

(ˈpɜːmɪən) adj (Geological Science) of, denoting, or formed in the last period of the Palaeozoic era, between the Carboniferous and Triassic periods, which lasted for 60 000 000 yearsn (Geological Science) the Permian the Permian period or rock system[C19: after Perm, Russia]

Per•mi•an

(ˈpɜr mi ən)

adj. 1. noting or pertaining to a period of the Paleozoic Era occurring from about 280 million to 230 million years ago, a time of mass extinctions and a profusion of amphibian species. n. 2. the Permian Period or System. [1841; after the province of Perm in E Russia (see Perm), where strata from this period were identified; see -ian]

Per·mi·an

(pûr′mē-ən) The seventh and last period of the Paleozoic Era, from about 286 to 245 million years ago. The Permian Period was characterized by the formation of the supercontinent Pangaea, the rise of modern conifers, and the diversification of reptiles. It ended with the largest known mass extinction in the history of life. See Chart at geologic time.

Thesaurus

Noun

1.

Permian - from 280 million to 230 million years ago; reptilesPermian periodPaleozoic, Paleozoic era - from 544 million to about 230 million years ago

Translations

PermPermien