[verb kawr-uh-geyt, kor-; adjective kawr-uh-git, -geyt, kor-]
- 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).
- to become corrugated; undergo corrugation.
- corrugated; wrinkled; furrowed.
Origin of corrugate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a muscle whose contraction causes wrinkling of the brow
- (usually tr) to fold or be folded into alternate furrows and ridges
- 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
Word Origin and History for corrugator
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.