DROSS, noun [G.] 1. The recrement or despumation of metals; the scum or extraneous matter of metals, thrown off in the process of melting. 2. Rust; crust of metals; an incrustation formed on metals by oxydation. 3. Waste matter; refuse; any worthless matter separated from the better part; impure matter. The worlds glory is but dross unclean.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI