Bible Dictionaries
Dross

Webster's Dictionary

(1):

(n.) The scum or refuse matter which is thrown off, or falls from, metals in smelting the ore, or in the process of melting; recrement.

(2):

(n.) Rust of metals.

(3):

(n.) Waste matter; any worthless matter separated from the better part; leavings; dregs; refuse.

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