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