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retractor

Line breaks: re|tract¦or
Pronunciation: /rɪˈtraktə
 
/

Definition of retractor in English:

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.
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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Pronunciation: ˈtɛnɪbrəs
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