Permian
Americanadjective
noun
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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.
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See Chart at geologic time
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Etymology
Origin of Permian
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Permian production bypasses Cushing on its way to Gulf refineries and to export from the newly expanded Port of Corpus Christi through pipelines, which have also been expanded.
From MarketWatch • Jun. 6, 2026
It has some exposure to the Middle East, where the war has impacted operations, but 83% of its production is U.S.-based, with particularly strong positions in the Permian Basin of Texas and New Mexico.
From Barron's • May 29, 2026
That is much better than the single-digit returns traditionally seen in solar and wind, and in line with some Permian shale projects.
From The Wall Street Journal • May 23, 2026
The company has two core energy-producing assets—in the best part of the Permian Basin and in the Montney Formation in Canada.
From Barron's • May 15, 2026
Not all classes were like this, but even in accelerated courses the classroom at Permian was hardly a hotbed of intellectual give-and-take.
From "Friday Night Lights: A Town, A Team, And A Dream" by H.G. Bissinger
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
