Dictionary.com
definitions

depressor

[dih-pres-er]
|

noun

a person or thing that depresses.
Surgery. an instrument for pressing down a protruding part, as a tongue depressor.
Anatomy.
  1. a muscle that draws down a part of the body, as the corner of the mouth.Compare levator.
  2. Also called depressor nerve.a nerve that, when stimulated, induces a decrease in activity, as a slowed heartbeat.

Origin of depressor

1605–15; < Late Latin, derivative of Latin dēprimere (see depress, -tor)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for depressor

Historical Examples of depressor

British Dictionary definitions for depressor

depressor

noun

a person or thing that depresses
any muscle that draws down a part
med an instrument used to press down or aside an organ or parta tongue depressor
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 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
depressor in Medicine

depressor

[dĭ-prĕs′ər]

n.

Any of various muscles that act by drawing down a part of the body.
Something that depresses or retards functional activity.
An instrument used to push certain structures out of the way during an operation or examination.
An agent that lowers blood pressure.hypotensor
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.