ممتحن

mumtaḥin (act. part. of اِمتحن 'to examine, to try, prove,' etc., viii of محن 'to strike; to try, prove,' etc.), part. adj. & s.m. Examining, trying, proving;—examiner, tester, prover; auditor:—mumtaḥan (pass. part. of the same verb), part. adj. Examined, tested, tried, proved; experienced;—s.m. One who has been examined, etc.; an examinee:—mumtaḥin-ě-kīmiyā, s.m. A chemical examiner.