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scoria
3 dictionary results for: Scoriaceous
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

sco⋅ri⋅a

   [skawr-ee-uh, skohr-]
–noun, plural sco⋅ri⋅ae  [skawr-ee-ee, skohr-] .
1. Metallurgy. the refuse, dross, or slag left after melting or smelting metal; scum.
2. Geology. a cinderlike basic cellular lava.
Origin:
1350–1400; ME < L scōria < Gk skōría, deriv. of skôr dung
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
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American Heritage Dictionary - Cite This Source - Share This
sco·ri·a     (skôr'ē-ə, skōr'-)  Pronunciation Key 
n.   pl. sco·ri·ae (skôr'ē-ē', skōr'-)
  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 scōria, from Greek skōriā, from skōr, excrement, dung; see sker-3 in Indo-European roots.]
sco'ri·a'ceous (-ā'shəs) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Scoriaceous

Sco`ri*a"ceous\, a. [Cf. F. scoriac['e].] Of or pertaining to scoria; like scoria or the recrement of metals; partaking of the nature of scoria.

Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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