scoria

[ skawr-ee-uh, skohr- ]

/ ˈskɔr i ə, ˈskoʊr- /

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.

Nearby words

scorekeeper, scoreless, scorepad, scorer, scoresby sound, scoria, scoriaceous, scoriae, scorification, scorify, scoring

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. 2019

Examples from the Web for scoria

The scoria found on the Regulus of the first fusion is a combination of Iron with the sulphureous part of the Antimony.
Elements of the Theory and Practice of Chymistry, 5th ed.|Pierre Joseph Macquer
Burning cinders and scoria lit up the eastern horizon like a fountain of fire.
The Bridge of the Gods|Frederic Homer Balch
Just as a fringe of scoria and lava encircles the mouth of a burning mountain.
A Girl's Ride in Iceland|Ethel Brilliana Alec-Tweedie
The dull red colour of the scoria gives one the impression that the flames have been of very recent date.
Forty Thousand Miles Over Land and Water|Lady (Ethel Gwendoline [Moffatt]) Vincent

The cone which rises from its center is remarkably regular, and consists for the most part of cinders and scoria.
The Former Philippines thru Foreign Eyes|Toms de Comyn

British Dictionary definitions for scoria

scoria

/ (ˈskɔːrɪə) /

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