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scoria

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
sco·ri·a  (skôr-, skr-)
n. pl. sco·ri·ae (skôr-, skr-)
1. Geology Porous cinderlike fragments of dark lava. Also called cinders, slag.
2. Metallurgy The refuse of a smelted metal or ore; slag. Also called cinder.

[Middle English, dross, from Latin scria, from Greek skri, from skr, excrement, dung; see sker-3 in Indo-European roots.]

scori·aceous (-shs) adj.

scoria [ˈskɔːrɪə]
n pl -riae [-rɪˌiː]
1. (Earth Sciences / Geological Science) a rough cindery crust on top of solidified lava flows containing numerous vesicles
2. (Engineering / Metallurgy) refuse obtained from smelted ore; slag
[from Latin: dross, from Greek skōria, from skōr excrement]
scoriaceous  [ˌskɔːrɪˈeɪʃəs] adj

scoria  (skôr-)
Plural scoriae (skôr-)
Rough, crusty, solidified lava containing numerous vesicles that originated as gas bubbles in the lava while it was still molten.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.scoriascoria - the scum formed by oxidation at the surface of molten metals
scum - a film of impurities or vegetation that can form on the surface of a liquid
basic slag - slag produced in making steel; low in silica but having large amounts of calcium phosphate; useful as fertilizer


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? Mentioned in ? References in classic literature
 
how planted upon this once scraggy scoria of a country?
Some of the interior valleys are strewed with scoria and broken stones, evidently of volcanic origin; the surrounding rocks bear the like character, and vestiges of extinguished craters are to be seen on the elevated heights.
The path coiled down abruptly into a narrow ravine between two tumbled and knotty masses of blackish scoria.
 
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