scoria

[skawr-ee-uh, skohr-]

See more synonyms for scoria on Thesaurus.com

noun, plural sco·ri·ae

[skawr-ee-ee, skohr-] /ˈskɔr iˌi, ˈskoʊr-/.

Metallurgy. the refuse, dross, or slag left after melting or smelting metal; scum.
Geology. a cinderlike basic cellular lava.

Origin of scoria

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

Related formssco·ri·a·ceous

[skawr-ee-ey-shuh s, skohr-] /ˌskɔr iˈeɪ ʃəs, ˌskoʊr-/, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for scoria

slag, magma, basalt, lava, slack, smut, ember, char, stoke, carbon, fuel, cinder, spark, charcoal, culm, scoria, ash, anthracite, refuse, trash

Examples from the Web for scoria

Historical Examples of scoria

Here, Oliver, lad, look at the great pieces of scoria and pumice.
Fire Island
G. Manville Fenn
The scoria is let off occasionally, through holes made for the purpose.
Popular Technology; Volume 2
Edward Hazen
Rabbits burrow in the heaps of scoria on the slopes of the mountains.
Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7
Various
The telescope reveals a parapet of scoria on the brim, as on Teneriffe.
The Andes and the Amazon
James Orton
On approaching nearer the apex, the path was over cinders, fine black sand, and scoria.
The Mirror of Literature, Amusement, and Instruction
Various

British Dictionary definitions for scoria

scoria

noun plural -riae (-rɪˌiː)

a rough cindery crust on top of solidified lava flows containing numerous vesicles
refuse obtained from smelted ore; slag

Derived Formsscoriaceous (ˌskɔːrɪˈeɪʃəs), adjective

Word Origin for scoria

C17: from Latin: dross, from Greek skōria, from skōr excrement

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 in Science

scoria

[skôr′ē-ə]

Plural scoriae (skôr′ē-ē′)

Rough, crusty, solidified lava containing numerous vesicles that originated as gas bubbles in the lava while it was still molten.