/ Dictionary / Index S scoria: Meaning and Definition of Find definitions for: sco•ri•a Pronunciation: (skôr'ē-u, skōr'-), [key] — pl. sco•ri•ae the refuse, dross, or slag left after melting or smelting metal; scum. a cinderlike basic cellular lava. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: scoria (Thesaurus) scorepad scorification Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language