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mushroom slab construction

American

noun

beamless reinforced-concrete floor and roof construction employing columns with widely flaring heads having horizontal rings of reinforcement to support the floor or roof slab.

Etymology

Origin of mushroom slab construction

First recorded in 1960–65

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.