depressor

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.

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 parta 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

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