Permian

American  

[pur-mee-uhn] / ˈpɜr mi ən /

adjective

1. Geology. noting or pertaining to a period of the Paleozoic Era occurring from about 280 to 230 million years ago and characterized by a profusion of amphibian species.

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noun

1. Geology. the Permian Period or System.

2. Permic.

Permian British  

/ ˈpɜːmɪən /

adjective

1. of, denoting, or formed in the last period of the Palaeozoic era, between the Carboniferous and Triassic periods, which lasted for 60 000 000 years

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noun

1. the Permian period or rock system

Permian Scientific  

/ pûr′mē-ən /

1. The seventh and last period of the Paleozoic Era, from about 286 to 245 million years ago. During the Permian Period the supercontinent Pangaea, comprising almost all of today's landmasses, formed. Gymnosperms evolved, the first modern conifers appeared, and reptiles diversified. The Permian Period ended with the largest known mass extinction in the history of life. It wiped out nearly 90 percent of known marine life forms.

2. See Chart at geologic time

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Other Word Forms

• post-Permian adjective
• pre-Permian adjective

Etymology

Origin of Permian

First recorded in 1835–45; Perm + -ian

Example Sentences

His top picks are Devon Energy, Diamondback Energy, and Permian Resources; the first two are both up less than 30% this year, meaning they haven’t appreciated as much as their peers.

From Barron's

The southeast corner of New Mexico hosts some of the most productive wells in the Permian Basin, the nation’s most prolific oil field that extends far into West Texas.

From The Wall Street Journal

In the Permian basin of New Mexico and west Texas, for example, producers can more quickly and economically ramp up extraction of light crude oil trapped in shale rock.

From Los Angeles Times

Should stoppages continue, analysts warn American drillers in the Permian Basin have little interest or wherewithal to immediately pump more crude.

From The Wall Street Journal

Two of those—Diamondback and Permian—were due to valuation.

From Barron's