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scratch coat

American

noun

(in plastering) a rough, deeply scored first coat upon which the brown coat is laid.

Other Word Forms

scratch-coated

adjective

Etymology

Origin of scratch coat

An Americanism dating back to 1815–25

Example Sentences

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scratch coat

The concrete is then applied to these laths in six coats, three on each side, and termed respectively the scratch coat, the rough coat, and the fining coat.

From The New York Subway Its Construction and Equipment by Anonymous

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.