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[kuh n-strikt]
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verb (used with object)
  1. to draw or press in; cause to contract or shrink; compress.
  2. to slow or stop the natural course or development of: Greed and aggressiveness constricted the nation's cultural life.

Origin of constrict

1375–1425 for earlier past participle sense; 1725–35 for current senses; late Middle English < Latin constrīctus (past participle of constringere to draw together, tie up), equivalent to con- con- + strīc- (variant stem of stringere to tie; see strict) + -tus past participle suffix
Related formsnon·con·strict·ed, adjectivenon·con·strict·ing, adjectiveun·con·strict·ed, adjectivewell-con·strict·ed, adjective


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1. cramp, squeeze, bind, tighten.


1. expand.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for unconstricted

Historical Examples

  • The notochord is persistent and unconstricted, and the limbs are archipterygia.

    The Vertebrate Skeleton

    Sidney H. Reynolds

  • Deep, unconstricted bedrock channels and basins with weak currents occur in mid-Bay and the west inlet.

    Humpback Whales in Glacier Bay National Monument, Alaska

    United States Department of Commerce, Marine Mammal Commission

  • The unconstricted portion of the notochord, which persists in each vertebra, becomes in part converted into cartilage.

  • The notochord is unconstricted, but the neural and haemal arches are well-developed, and the neural spines are long and slender.

    The Vertebrate Skeleton

    Sidney H. Reynolds

  • The notochord is persistent and unconstricted, its sheath is membranous, but cartilaginous neural and haemal arches are developed.

    The Vertebrate Skeleton

    Sidney H. Reynolds

British Dictionary definitions for unconstricted


verb (tr)
  1. to make smaller or narrower, esp by contracting at one place
  2. to hold in or inhibit; limit

Word Origin

C18: from Latin constrictus compressed, from constringere to tie up together; see constrain
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 unconstricted



early 15c., from Latin constrictus, past participle of constringere "compress" (see constrain). A direct borrowing from Latin of the same word which, via French, became constrain. Related: Constricted; constricting.

Online Etymology Dictionary, © 2010 Douglas Harper

unconstricted in Medicine


([object Object])
  1. To make smaller or narrower, especially by binding or squeezing.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

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