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up·​thrust ˈəp-ˌthrəst How to pronounce upthrust (audio)
upthrusted; upthrusting; upthrusts

transitive verb

: to thrust up
especially : to elevate (a part of the earth's surface) in an upthrust

intransitive verb

: to rise with an upward thrust


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: an upward thrust
specifically : an uplift of part of the earth's crust

Examples of upthrust in a Sentence

Verb an upthrusting seamount
Recent Examples on the Web
After all, the collision of the Indian and Eurasian tectonic plates, which began 50 million years ago, has been responsible for the upthrust of Mt. Everest and the world's tallest mountain range, the Himalaya. Tom Yulsman, Discover Magazine, 1 May 2015 Yes, the scientific phenomenon that allows something to float or sink, also known as upthrust. Molly Longman, refinery29.com, 9 July 2020 From an upthrust of land in the Shawangunk Mountains, Alfred looked down at Lake Mohonk and was smitten. Karl Zimmermann, Los Angeles Times, 3 Aug. 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'upthrust.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use


1845, in the meaning defined at transitive sense


1846, in the meaning defined above

Time Traveler
The first known use of upthrust was in 1845

Dictionary Entries Near upthrust

Cite this Entry

“Upthrust.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/upthrust. Accessed 22 May. 2024.

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