Bible Dictionaries
Colcothar

Webster's Dictionary

(n.) Polishing rouge; a reddish brown oxide of iron, used in polishing glass, and also as a pigment; - called also crocus Martis.

Bibliography Information
Webster, Noah. Entry for 'Colcothar'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​c/colcothar.html. 1828.