A professional discoverer of witches, whose services were sometimes employed when the persecution of so-called witches was in vogue.(noun)
The Century Dictionary (Public Domain)
Use "witch-finder" in a sentence
"Apparently they felt she has a perfect right to follow in the train of a witch-finder."
"There's plenty of moralistic spluttering and froth at Daimnation, for example, and naturally that assiduous witch-finder Jonathan Kay is on the case as well."
"The story gained such universal applause that it soon afterwards brought down express from London the great witch-finder of the age, the Heaven-born"