[ ob-stroo-uh nt ]
/ ˈɒb stru ənt /


Medicine/Medical. (of a substance) producing an obstruction.
Phonetics. (of a speech sound) characterized by stoppage or obstruction of the flow of air from the lungs.Compare sonorant.


Medicine/Medical. a medicine that closes the natural passages of the body.
Phonetics. an obstruent speech sound; a stop, fricative, or affricate.Compare sonorant(def 2).

Nearby words

  1. obstructive hydrocephalus,
  2. obstructive jaundice,
  3. obstructive murmur,
  4. obstructive thrombus,
  5. obstructivity,
  6. obtain,
  7. obtainable,
  8. obtaining by deception,
  9. obtect,
  10. obtemper

Origin of obstruent

1660–70; < Latin obstruent- (stem of obstruēns, present participle of obstruere); see obstruct, -ent

Related formsun·ob·stru·ent, adjectiveun·ob·stru·ent·ly, adverb

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for obstruent


/ (ˈɒbstrʊənt) med /


causing obstruction, esp of the intestinal tract


anything that causes obstruction

Word Origin for obstruent

C17: from Latin obstruere to obstruct

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

Medicine definitions for obstruent


[ ŏbstrōō-ənt ]


Obstructing or closing the natural passages of the body.


An obstruent medicine or agent.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.