Bible Dictionaries
Adamant

Webster's Dictionary

(1):

(n.) A stone imagined by some to be of impenetrable hardness; a name given to the diamond and other substances of extreme hardness; but in modern mineralogy it has no technical signification. It is now a rhetorical or poetical name for the embodiment of impenetrable hardness.

(2):

(n.) Lodestone; magnet.

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