tectonic
Americanadjective
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of or relating to building or construction; constructive; architectural.
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Geology.
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pertaining to the structure of the earth's crust.
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referring to the forces or conditions within the earth that cause movements of the crust.
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designating the results of such movements.
tectonic valleys.
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adjective
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denoting or relating to construction or building
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geology
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(of landforms, rock masses, etc) resulting from distortion of the earth's crust due to forces within it
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(of processes, movements, etc) occurring within the earth's crust and causing structural deformation
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Other Word Forms
Etymology
Origin of tectonic
1650–60; < Late Latin tectonicus < Greek tektonikós pertaining to construction, equivalent to tekton- (stem of téktōn ) carpenter + -ikos -ic
Explanation
No, it’s not the latest electro-dance craze from Japan; the word tectonic refers to the earth's crust and the big hunks of it that shift around. Even though it’s popular with the geology crowd, tectonic comes from the Greek word for "building." That can help you remember that the earth's crust consists of the building blocks we live on — the continents. Tectonic plates are the large sections of the earth’s surface that shift. If you live in a part of the world that sits on the edge of a tectonic plate, like the San Andreas Fault in California, you’ve probably felt an earthquake or two.
Vocabulary lists containing tectonic
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Brace Yourself: Earthquake Words
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Geological Features
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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.
“We’ve had a major paradigm change, a major regime shift in the capital cycle. The capital cycle was funding financial engineering, now the capital cycle is funding a new tectonic life-changing technology,” he said.
From MarketWatch ● Jul. 29, 2026
The area is located on an active tectonic fault system and is no stranger to tremors.
From BBC ● Jul. 29, 2026
Japan is one of the world's most seismically active countries, sitting on top of four major tectonic plates along the western edge of the Pacific "Ring of Fire".
From Barron's ● Jul. 28, 2026
Among the strongest signs of tectonic activity are Venus's enormous rift valleys.
From Science Daily ● Jul. 25, 2026
So, too, has much of southern Africa; a portion of it a thousand miles across has risen nearly a mile in 100 million years without any known associated tectonic activity.
From "A Short History of Nearly Everything" by Bill Bryson
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.
