An officer in certain religious orders whose duty is to decide points of discipline.(noun)
The Century Dictionary (Public Domain)
Use "definitor" in a sentence
"Before the chapter-general of the order met, he was named definitor by the provincial chapter; but on his remonstrances at being thus so often compelled to assume offices, in spite of his repugnance, he at length obtained a papal brief, exempting him from all charges, and annulling even his active and passive vote in the chapter."
"In the provincial chapter of 1690, he was appointed to the office of definitor, in addition to that which he already held."
"Later (1645-8) he occupied the two highest posts in the order, that of definitor and procurator general."