(n.) The recrement of metals in fusion, or the slag rejected after the reduction of metallic ores; dross.
(n.) Cellular slaggy lava; volcanic cinders.
Example Sentences:
(1) Scoria (volcanic cinder) was most effective in excluding roots of crested wheatgrass and streambank wheatgrass.
Scorification
Definition:
(n.) The act, process, or result of scorifying, or reducing to a slag; hence, the separation from earthy matter by means of a slag; as, the scorification of ores.