[ ob-tuh-reyt, -tyuh- ]
/ ˈɒb təˌreɪt, -tyə- /

verb (used with object), ob·tu·rat·ed, ob·tu·rat·ing.

to stop up; close.
Ordnance. to close (a hole or cavity) so as to prevent a flow of gas through it, especially the escape of explosive gas from a gun tube during firing.

Nearby words

  1. obtrude,
  2. obtrusion,
  3. obtrusive,
  4. obtrusively,
  5. obtund,
  6. obturating embolism,
  7. obturator,
  8. obturator artery,
  9. obturator canal,
  10. obturator crest

Origin of obturate

1550–60; < Latin obtūrātus, past participle of obtūrāre to block, stop up

Related formsob·tu·ra·tion, nounob·tu·ra·tor, noun

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

British Dictionary definitions for obturate


/ (ˈɒbtjʊəˌreɪt) /


(tr) to stop up (an opening, esp the breech of a gun)
Derived Formsobturation, nounobturator, noun

Word Origin for obturate

C17: from Latin obtūrāre to block up, of obscure origin

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 obturate


[ ŏbtə-rāt′ ]


To close or obstruct.
Related formsob′tu•ration n.

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