1 of 2


transitive verb

: to exert pull on the underside of (an overlying mass of rock)

intransitive verb

: to undergo a pull from the underside


2 of 2


: the combined tensile stresses exerted by an overthrust rock mass upon rocks which overlie it but are not themselves under compressive thrusting stresses and therefore tend to be stretched and broken by normal faulting

Word History



under entry 1 + drag

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Dictionary Entries Near underdrag

Cite this Entry

“Underdrag.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underdrag. Accessed 29 May. 2024.

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