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foredeep

American  
[fawr-deep, fohr-] / ˈfɔrˌdip, ˈfoʊr- /

noun

Geology.

  1. an elongate sediment-filled sea-floor depression bordering an island arc or other orogenic belt.

Etymology

Origin of foredeep

First recorded in 1905–10; fore- + deep

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.