obturate

[ 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.

Origin of obturate

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

Related forms

ob·tu·ra·tion, nounob·tu·ra·tor, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for obturator

British Dictionary definitions for obturator

obturate

/ (ˈɒbtjʊəˌreɪt) /

verb

(tr) to stop up (an opening, esp the breech of a gun)

Derived Forms

obturation, 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 obturator (1 of 2)

obturator

[ ŏbtə-rā′tər ]

n.

A structure, such as the soft palate, that closes an opening in the body.
A prosthetic device that serves to close an opening or cleft, especially in the palate.
A stylus or removable plug used during the insertion of many tubular instruments.

Medicine definitions for obturator (2 of 2)

obturate

[ ŏbtə-rāt′ ]

v.

To close or obstruct.

Related forms

ob′tu•ration n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.