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Scoria   Listen
Scoria

noun
(pl. scoriae)
1.
The scum formed by oxidation at the surface of molten metals.  Synonyms: dross, slag.






WordNet 3.0 © 2010 Princeton University








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"Scoria" Quotes from Famous Books



... mainly composed, in great numbers, and occasionally in bulky masses; but it is rare to find other than small specimens that would be recognized as of value by the lapidary. The inclosing rock must have been as thickly vesicular in its original state as the scoria of a glass-house; and all the vesicles, large and small, like the retorts and receivers of a laboratory, have been vessels in which some curious chemical process has been carried on. Many of them we find filled with a white semi-translucent or opaque chalcedony; many ...
— The Cruise of the Betsey • Hugh Miller

... the caves a fiery dart shot from the clouds that shrouded the mountain-crests; it sped across the sky and buried itself in the forest above the Rito. A clinking and crackling followed, as if a mass of scoria were shattered, then a deafening peal shook the cliffs to the very foundations. A strong gust of wind swept down the gorge. It caused the tall pines to shake, and the shrubbery surged in the blast. In the nooks and angles of the cliffs the wind ...
— The Delight Makers • Adolf Bandelier

... separable from the usual solar spots shall be seen on the solar spots' (sic, presumably solar disc was intended), 'we will not dare to say that it does not exist. We cannot doubt the honesty of M. Lescarbault, and we can hardly believe that he was mistaken. No solar spot, no floating scoria, could maintain in its passage over the sun a circular and uniform shape, and we are confident that no other hypothesis but that of an intra-mercurial planet can explain the phenomena seen and measured by M. Lescarbault, a man of high ...
— Myths and Marvels of Astronomy • Richard A. Proctor

... destructive strain by the proving machine. An exact account was taken of the nature of the fracture of each. The result was that in eight cases out of ten, the fracture was found to result from a defectively welded part of the chain-link. The practically trained eye could see the scoria which indicates the defective welding. Though long unseen, it was betrayed at once when the link was torn open ...
— James Nasmyth's Autobiography • James Nasmyth

... this age, and especially in this country, there is an incessant flux and reflux of public opinion. Questions which in their day assumed a most threatening aspect have now nearly gone from the memory of men. They are "volcanoes burnt out, and on the lava and ashes and squalid scoria of old eruptions grow the peaceful olive, the cheering vine, and the sustaining corn." Such, in my opinion, will prove to be the fate of the present sectional excitement should those who wisely seek to apply the remedy continue always to confine their efforts within the pale of the ...
— A Compilation of the Messages and Papers of the Presidents - Section 4 (of 4) of Volume 5: James Buchanan • James D. Richardson



Words linked to "Scoria" :   slag, scum, basic slag, dross



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