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.]

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]

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]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.caldera - a large crater caused by the violent explosion of a volcano that collapses into a depressioncaldera - a large crater caused by the violent explosion of a volcano that collapses into a depression
crater, volcanic crater - a bowl-shaped geological formation at the top of a volcano
Translations

caldera

[kælˈdɛərə] n (Geol) → caldera
References in periodicals archive ?
Frohlich and her team analyzed undersea volcanic calderas in the Tofua arc west of Tongatapu and local slump features just offshore from the boulders and concluded that a caldera collapse was the likely cause of a tsunami large enough to move the boulders.
At the end of the FEE caldera collapse occurred along Paipa-Iza and Cerro Plateado normal faults, forming the depression along which Quebrada Honda Grande stream flows, over the place where the former vent must be located.
Porphyries have intruded an inlier of volcanics after the caldera collapse.