de pressor

depressor

[dih-pres-er]
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; < Late Latin, derivative of Latin dēprimere (see depress, -tor)

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World English Dictionary
depressor (dɪˈprɛsə)
 
n
1.  a person or thing that depresses
2.  any muscle that draws down a part
3.  med an instrument used to press down or aside an organ or part: a tongue depressor
4.  Also called: depressor nerve any nerve that when stimulated produces a fall in blood pressure by dilating the arteries or lowering the heartbeat

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
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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