upthrust

American  

[uhp-thruhst] / ˈʌpˌθrʌst /

noun

1. a thrust in an upward direction.

2. a sudden and forceful upward movement, as of a nation's economy or the stock market.

   Market observers are hoping the upthrust can be sustained.

3. Geology. an upheaval.

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verb (used without object)

1. to thrust upward.

   Frost caused the ground to upthrust.

upthrust British  

/ ˈʌpˌθrʌst /

noun

1. an upward push or thrust

2. geology a violent upheaval of the earth's surface

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Etymology

Origin of upthrust

First recorded in 1840–50; up- + thrust