cor·ru·gate

[v. kawr-uh-geyt, kor-; adj. kawr-uh-git, -geyt, kor-] verb, cor·ru·gat·ed, cor·ru·gat·ing, adjective
verb (used with object)
1.
to draw or bend into folds or alternate furrows and ridges.
2.
to wrinkle, as the skin or face.
3.
Western U.S. to make irrigation ditches in (a field).
verb (used without object)
4.
to become corrugated; undergo corrugation.
adjective
5.
corrugated; wrinkled; furrowed.

Origin:
1375–1425; late Middle English < Latin corrūgātus past participle of corrūgāre, equivalent to cor- cor- + rūg(āre) to wrinkle + -ātus -ate1

cor·ru·gat·ed, adjective
cor·ru·ga·tor, noun
un·cor·ru·gat·ed, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To corrugated
00:10
Corrugated is always a great word to know.
So is quincunx. Does it mean:
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
Collins
World English Dictionary
corrugate
 
vb
1.  (usually tr) to fold or be folded into alternate furrows and ridges
 
adj
2.  folded into furrows and ridges; wrinkled
 
[C18: from Latin corrūgāre, from rūga a wrinkle]
 
corru'gation
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

corrugate
1520s (implied in corrugation), from L. corrugatus, pp. of corrugare "to wrinkle," from com- intens. prefix + rugare "to wrinkle."

corrugated
1620s, "wrinkled" (of skin, etc.), pp. adj. from corrugate. Meaning "bent into curves or folds" (of iron, cardboard, etc., for elasticity and strength) is from 1853.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
He does it by moving containerized tropicals under a corrugated plastic roof.
Five trailers painted pink, linked by a corrugated metal roof, are surrounded
  by a six-foot fence topped with barbed wire.
Its back was corrugated and ornamented with ungainly bosses, and a greenish
  incrustation blotched it here and there.
These are stone benches arranged in rows, which give the semicircular
  bowl-shape of the theatre a corrugated surface.
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