名詞 retractor:

1. surgical instrument that holds back the edges of a surgical incision

re.trac.tor

n.（名詞）
One that retracts, as:
縮回的東西，如：
Anatomy A muscle, such as a flexor, that retracts an organ or a part.
【解剖學(xué)】 牽拉?。耗苁蛊鞴倩虿课皇湛s的肌肉，例如屈肌
Medicine A surgical instrument used to hold back organs or the edges of an incision.
【醫(yī)學(xué)】 牽開器：一種手術(shù)儀器，用于將器官或切開的邊緣撐住