retractor

名词 n.
中文释义
英 /ɹɪˈtɹæktə/    美 /ɹɪˈtɹæktɚ/

英文释义

名词 n.
  1. One who, or that which, retracts.
  2. In breech-loading firearms, a device for withdrawing a cartridge shell from the barrel.
  3. A chess puzzle in which a number of moves are retracted and the solver is challenged to reach an alternate outcome.
  4. A surgical instrument used to hold apart the edges of an incision or wound.
  5. A bandage to protect soft parts of the body from injury by a surgical saw.
  6. A muscle serving to draw in any part.

词形变化

retractors plural

词源

From retract + -or.
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