[verb kawr-uh-geyt, kor-; adjective kawr-uh-git, -geyt, kor-]
verb (used with object), cor·ru·gat·ed, cor·ru·gat·ing.
to draw or bend into folds or alternate furrows and ridges.
to wrinkle, as the skin or face.
Western U.S. to make irrigation ditches in (a field).
verb (used without object), cor·ru·gat·ed, cor·ru·gat·ing.
to become corrugated; undergo corrugation.
corrugated; wrinkled; furrowed.
Origin of corrugate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a muscle whose contraction causes wrinkling of the brow
(usually tr) to fold or be folded into alternate furrows and ridges
adjective (ˈkɒrʊɡɪt, -ˌɡeɪt)
folded into furrows and ridges; wrinkled
Word Origin for corrugate
C18: from Latin corrūgāre, from rūga a wrinkle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
1620s; implied earlier as a past participle adjective (early 15c.), from Latin corrugatus, past participle of corrugare "to wrinkle very much," from com-, intensive prefix (see com-), + rugare "to wrinkle," of unknown origin.
Online Etymology Dictionary, © 2010 Douglas Harper
A muscle that draws the skin together, causing it to wrinkle.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.