from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A large crater formed by volcanic explosion or by collapse of a volcanic cone.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A large crater formed by a volcanic explosion or by collapse of the cone of a volcano.
from The Century Dictionary and Cyclopedia
- n. A large kettle or caldron; hence, in geology, an amphitheatrical depression in a volcanic formation.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a large crater caused by the violent explosion of a volcano that collapses into a depression
Spanish, cauldron, caldera, from Late Latin caldāria; see cauldron.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Spanish caldera ("cauldron"), from Latin caldāria ("warm bath"). (Wiktionary)