retracer
/riˈtreɪsər/
noun
- A person or thing that retraces, such as someone who goes back over a path or reexamines a series of events.
- The retracer of the old hiking trail found it overgrown with weeds.
- The software acts as a retracer of user clicks to help improve the website.
- As a retracer of family history, she spent years visiting archives.
Synonyms