名詞 depressor:

1. any skeletal muscle that draws a body part down
   同義詞：depressor muscle
2. any nerve whose activity tends to reduce the activity or tone of the body part it serves
   同義詞：depressor nerve
3. a device used by physician to press a part down or aside

de.pres.sor

n.（名詞）
Something that depresses or is used to depress.
壓下物，壓抑物：壓下的物體或使壓抑的物體
An instrument used to depress a part:
壓器，壓板：用于壓下某部分的儀器：
例句：
a tongue depressor.
壓舌板

Any of various muscles that serve to draw down a part of the body.
降?。河糜谙纳眢w某部分的肌肉