IPA: /rɪˈtræktər/
KK: /rɪˈtræktər/
A tool or muscle that pulls back or holds open parts of the body, often used in surgery to keep an incision or organ in place.
The surgeon used a retractor to keep the incision open during the operation.
Retractor → It is formed from "re-" (meaning back or again) and "tractare" (meaning to draw or pull). The word "retractor" refers to a device that draws back or pulls something back.
Think of something that pulls back ('re-') — that's what a retractor does.