Definition of retractor in English:

retractor

Syllabification: re·trac·tor
Pronunciation: /riˈtraktər
 
/

noun

  • 1A device for retracting something: seat belts with automatic retractors
    More example sentences
    • Easily visualizing the acetabulum, the surgeon places retractors, avoiding sciatic nerve injury.
    • The surgeon and assistant protect the sciatic nerve with retractors while dividing the hip capsule, leaving all possible structures intact.
    • The surgeon places two self-retaining retractors at right angles to one another to retract the longus colli muscles.
  • 1.1 (also retractor muscle) chiefly Zoology A muscle serving to retract a part of the body. Compare with protractor.
    More example sentences
    • The literature on echinoderm neurobiology is sparse, but one of the few studies available found that the pharyngeal retractor muscle of the holothurian Cucumaria has perhaps 700 motor units.
    • On the day of the experiment, the shell was opened, the anterior byssus retractor muscle was exposed, and the pedal ganglia removed.
    • In the overhead thrower, the shoulder external rotator muscles, scapular retractor muscles, and protractor and depressor muscles are frequently isolated because of weakness.

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