depressor

depressor
noun
  1. (Anatomy)(亦作 depressor muscle)a muscle whose contraction pulls down the part of the body to which it is attached
    (剖)降肌
    ■any of several specific muscles in the face
    面部肌肉
    [followed by Latin genitive]depressor anguli oris.
    降口角肌。
  2. (Physiology)a nerve whose stimulation results in a lowering of blood pressure
    (生理)降压神经
  3. an instrument for pressing something down
    压板, 压器
语源
  1. early 17th cent. (in the general sense 'someone or something that depresses'): from Latin, from depress- 'pressed down', from the verb deprimere (see depress)
英语宝典
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