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fluid coupling

American

noun

Machinery. an apparatus in which a fluid, usually oil, transmits torque from one shaft to another, producing an equal torque in the other shaft.

Etymology

Origin of fluid coupling

First recorded in 1935–40

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.