[ kuhl-duh-sak, -sak, kool-; French kyduh-sak ]
/ ˈkʌl dəˈsæk, -ˌsæk, ˈkʊl-; French küdəˈsak /
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noun, plural culs-de-sac [kuhlz-duh-sak, -sak, koolz-; French kyduh-sak]. /ˈkʌlz dəˈsæk, -ˌsæk, ˈkʊlz-; French küdəˈsak/.

a street, lane, etc., closed at one end; blind alley; dead-end street.
any situation in which further progress is impossible.
the hemming in of a military force on all sides except behind.
Anatomy. a saclike cavity, tube, or the like, open only at one end, as the cecum.



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Origin of cul-de-sac

1730–40; <French: literally, bottom of the sack
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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British Dictionary definitions for cul-de-sac

/ (ˈkʌldəˌsæk, ˈkʊl-) /

noun plural culs-de-sac or cul-de-sacs

a road with one end blocked off; dead end
an inescapable position
any tube-shaped bodily cavity or pouch closed at one end, such as the caecum

Word Origin for cul-de-sac

C18: from French, literally: bottom of the bag
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

Medical definitions for cul-de-sac

[ kŭldĭ-săk, kul′- ]

n. pl. culs-de-sac (kŭlz-, kulz′-)

A saclike cavity or tube open only at one end.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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