Bible Dictionaries
Thummim

Webster's Dictionary

(n. pl.) A mysterious part or decoration of the breastplate of the Jewish high priest. See the note under Urim.

Bibliography Information
Webster, Noah. Entry for 'Thummim'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​t/thummim.html. 1828.