Probator
Also found in: Legal.
Pro`ba´tor
n. 1. An examiner; an approver.
2. (O. Eng. Law) One who, when indicted for crime, confessed it, and accused others, his accomplices, in order to obtain pardon; a state's evidence.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.