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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.
    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.


depressor

/ dɪˈprɛsə /

noun

  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 calleddepressor 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


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Word History and Origins

Origin of depressor1

1605–15; < Late Latin, derivative of Latin dēprimere ( depress, -tor )
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Example Sentences

In the basi-carinal corner of the valve there are often crests for the attachment of the tergal depressor muscle.

Cirripedia without a peduncle; scuta and terga furnished with depressor muscles; other valves united immoveably together.

The cavity for the lateral depressor muscle is generally very slight; but in the two vars.

The depressor muscle is attached in the middle, at the lower, open end of this cavity.

There is a short adductor ridge, and a deep narrow pit or cleft for the lateral-depressor muscle.

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