Bible Dictionaries
Pitchblende

Webster's Dictionary

(n.) A pitch-black mineral consisting chiefly of the oxide of uranium; uraninite. See Uraninite.

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