[ kal-der-uh, kawl- ]
/ kælˈdɛr ə, kɔl- /


a large, basinlike depression resulting from the explosion or collapse of the center of a volcano.

Origin of caldera

1860–65; < Spanish Caldera, name of a crater on Canary Islands, literally, cauldron < Late Latin caldāria, noun use of feminine of caldārius of warming; see caldarium
Can be confusedcaldera fumarole geyser volcano Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for caldera

British Dictionary definitions for caldera


/ (kælˈdɛərə, ˈkɔːldərə) /


a large basin-shaped crater at the top of a volcano, formed by the collapse or explosion of the coneSee cirque

Word Origin for caldera

C19: from Spanish Caldera (literally: cauldron), name of a crater in the Canary Islands
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

Science definitions for caldera


[ kăl-dârə, -dîrə, käl- ]

A large, roughly circular crater left after a volcanic explosion or the collapse of a volcanic cone. Calderas are typically much wider in diameter than the openings of the vents from which they were formed.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.