(geology) Rough masses of rock formed by solidified lava, and which can be found around a volcano's crater. [from 18th c.]
Origin of scoria
Middle English drossfrom Latin scōriafrom Greek skōriāfromskōrexcrement, dungsker-3 in Indo-European roots
American Heritage Dictionary of the English Language, 5th Edition
From LatinscÅria, from Ancient Greek ÏƒÎºÏ‰ÏÎ¯Î± (skÅria), from ÏƒÎºá¿¶Ï (skÅr, “dung").
Scoria Sentence Examples
The earth surface above these natural furnaces has been hardened, cracked and sometimes melted into a reddish slag, called scoria, which, on account of its resemblance to lava, has given rise to an incorrect impression that the region was once the centre of volcanic disturbances.
Dark shading around Sandey indicates approximate lakebed extent of the scoria cone.