retractor noun. [rɪ'traktǝ] M19.
[from RETRACT verb¹, verb² + -OR.]
1. Medicine. An instrument or appliance used in surgical operations to hold back skin, tissues, etc. from the area of the operation. M19.

2. Anatomy. A muscle which serves to retract a limb or member. Also retractor muscle. M19.

3. Chess. A problem which involves the retraction of an assumed move or moves. E20.

[TahlilGaran] English Dictionary ▲