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depressor

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de⋅pres⋅sor

  [di-pres-er]
Use depressor in a Sentence
–noun
1. a person or thing that depresses.
2. Surgery. an instrument for pressing down a protruding part, as a tongue depressor.
3. Anatomy.
a. a muscle that draws down a part of the body, as the corner of the mouth. Compare levator.
b. Also called depressor nerve. a nerve that, when stimulated, induces a decrease in activity, as a slowed heartbeat.
Origin:
1605–15; < LL, deriv. of L dēprimere (see depress, -tor )
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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de·pres·sor   (dĭ-prěs'ər)   
n.  

  1. Something that depresses or is used to depress.

  2. An instrument used to depress a part: a tongue depressor.

  3. Any of various muscles that serve to draw down a part of 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: de·pres·sor
Pronunciation: di-'pres-&r
Function: noun
: one that depresses: as a : a muscle that draws down apart —compare LEVATOR b : a device for pressing a part down or aside —see TONGUE DEPRESSOR c : a nerve or nerve fiber that decreases the activity or the tone of the organ or partit innervates
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

depressor de·pres·sor (dĭ-prěs'ər)
n.

  1. Any of various muscles that act by drawing down a part of the body.

  2. Something that depresses or retards functional activity.

  3. An instrument used to push certain structures out of the way during an operation or examination.

  4. An agent that lowers blood pressure. Also called hypotensor.

  5. A nerve that when stimulated acts to lower arterial blood pressure.

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