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mother yaw

American

noun

Pathology.

the initial lesion of yaws, occurring at the site of inoculation.

Etymology

Origin of mother yaw

First recorded in 1815–25

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.