scoria
Syllabification: (sco·ri·a)
Pronunciation: /ˈskôrēə/
Definition of scoria
noun ( plural scoriae /ˈskôrē-ē/)
Derivatives
Origin:
late Middle English (denoting slag from molten metal): via Latin from Greek skōria 'refuse', from skōr 'dung'. The geological term dates from the late 18th century