cinder cone

cinder cone

noun Geology.
a small, conical volcano built of ash and cinders.

Origin:
1840–50
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Cinder cone is always a great word to know.
So is core. Does it mean:
seepage of water into soil or rock
central portion of the earth believed to be composed mainly of iron and nickel in a molten state
Dictionary.com's 21st Century Lexicon
Main Entry:  cinder cone
Part of Speech:  n
Definition:  a conically shaped hill formed from volcanic ash and cinders
Usage:  geology
Dictionary.com's 21st Century Lexicon
Copyright © 2003-2012 Dictionary.com, LLC
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American Heritage
Science Dictionary
cinder cone   (sĭn'dər)  Pronunciation Key 
A steep, conical hill consisting of glassy volcanic fragments that accumulate around and downwind from a volcanic vent. Cinder cones range in size from tens to hundreds of meters tall.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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