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downwelling

American  
[doun-wel-ing] / ˈdaʊnˌwɛl ɪŋ /

noun

Oceanography.

  1. a downward current of surface water in the ocean, usually caused by differences in the density of seawater.

Etymology

Origin of downwelling

First recorded in 1965–70; down 1 + well 2 + -ing 1

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.