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obturator

 - 5 dictionary results

ob⋅tu⋅rate

  [ob-tuh-reyt, -tyuh-]
Use obturator in a Sentence
–verb (used with object), -rat⋅ed, -rat⋅ing.
1. to stop up; close.
2. Ordnance. to close (a hole or cavity) so as to prevent a flow of gas through it, esp. the escape of explosive gas from a gun tube during firing.
Origin:
1550–60; < L obtūrātus, ptp. of obtūrāre to block, stop up

Related forms:
ob⋅tu⋅ra⋅tion, noun
ob⋅tu⋅ra⋅tor, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To obturator
ob·tu·ra·tor   (ŏb'tə-rā'tər, -tyə-)   
n.  

  1. An organic structure, such as the soft palate, that closes an opening in the body.

  2. A prosthetic device serving to close an opening in the body.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: ob·tu·ra·tor
Pronunciation: 'äb-t(y)&-"rAt-&r
Function: noun
1 a : either of two muscles arising fromthe obturator membrane and adjacent bony surfaces: (1) : OBTURATOR EXTERNUS (2) : OBTURATOR INTERNUS b : OBTURATORNERVE
2 a : a prosthetic device that closes or blocks up an opening (as a fissure in the palate) b : a device that blocks the opening of an instrument(as a sigmoidoscope) that is being introduced into the body
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

obturate ob·tu·rate (ŏb'tə-rāt', -tyə-)
v. ob·tu·rat·ed, ob·tu·rat·ing, ob·tu·rates
To close or obstruct.

ob'tu·ra'tion n.

obturator ob·tu·ra·tor (ŏb'tə-rā'tər, -tyə-)
n.

  1. A structure, such as the soft palate, that closes an opening in the body.

  2. A prosthetic device that serves to close an opening or cleft, especially in the palate.

  3. A stylus or removable plug used during the insertion of many tubular instruments.

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