caldera
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cal·de·ra
(kăl-dâr′ə, -dîr′ə, käl-)n.
A large crater formed by volcanic explosion or by collapse of a volcanic cone.
[Spanish, cauldron, caldera, from Late Latin caldāria; see cauldron.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
caldera
(kælˈdɛərə; ˈkɔːldərə)n
(Physical Geography) a large basin-shaped crater at the top of a volcano, formed by the collapse or explosion of the cone. See cirque
[C19: from Spanish Caldera (literally: cauldron), name of a crater in the Canary Islands]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
cal•de•ra
(kælˈdɛr ə, kɔl-)n., pl. -ras.
a large, basinlike depression resulting from the explosion or collapse of the center of a volcano.
[1860–65; < Sp Caldera literally, cauldron < Late Latin caldāria]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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| Noun | 1. |  caldera - a large crater caused by the violent explosion of a volcano that collapses into a depressioncrater, volcanic crater - a bowl-shaped geological formation at the top of a volcano |
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