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scoria

American  
[skawr-ee-uh, skohr-] / ˈskɔr i ə, ˈskoʊr- /

noun

scoriae plural
  1. Metallurgy. the refuse, dross, or slag left after melting or smelting metal; scum.

  2. Geology. a cinderlike basic cellular lava.


scoria British  
/ ˈskɔːrɪə, ˌskɔːrɪˈeɪʃəs /

noun

  1. a rough cindery crust on top of solidified lava flows containing numerous vesicles

  2. refuse obtained from smelted ore; slag

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

scoria Scientific  
/ skôrē-ə /
scoriae plural
  1. Rough, crusty, solidified lava containing numerous vesicles that originated as gas bubbles in the lava while it was still molten.


Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of scoria

1350–1400; Middle English < Latin scōria < Greek skōría, derivative of skôr dung

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The type of volcanic rock with common vesicles is called scoria.

From Textbooks Jan. 1, 2017

Lank shadows and stocky, the fluttering shadows of dresses, the ridiculous elongated shadows of trousered legs, darted and danced last week all over the reddish scoria of the Roland Garros Stadium courts near Paris.

From Time Magazine Archive

Rabbits burrow in the heaps of scoria on the slopes of the mountains.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" by Various

On one side of it is the gaol, a group of buildings surrounded by a wall and palisades, and situated in a scoria quarry.

From Brighter Britain! (Volume 1 of 2) or Settler and Maori in Northern New Zealand by Hay, William Delisle

We passed through a lane of black scoria, with steep banks on both sides.

From The World's Greatest Books — Volume 19 — Travel and Adventure by Hammerton, John Alexander, Sir

His passions are scoriae, his imagination a holocaust.

From Time Magazine Archive

How and why did they shape their scoriae colossi?

From Time Magazine Archive

Above the wooded zone Ætna is covered with miniature cones thrown up by different eruptions and regions of dreary plateau covered with scoriae and ashes and buried under snow a part of the year.

From Seeing Europe with Famous Authors, Volume 8 Italy and Greece, Part Two by Halsey, Francis W. (Francis Whiting)

Volcanic scoriae and lava streams are therefore portions of Pyriphlegethon itself, portions of the subterranean molten and ever-undulating mass.

From COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1 by Humboldt, Alexander von

Like a volcano, his mind blazed with wit, and buried sound sense beneath the scoriae and ashes it belched forth.

From The Life of Michelangelo Buonarroti by Symonds, John Addington

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