caldera noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of caldera noun from the Oxford Advanced American Dictionary

caldera

noun

NAmE//kɔlˈdɛrə//

, NAmE//kælˈdɛrə//

, NAmE//kɔlˈdɪrə//

, NAmE//kælˈdɪrə//

(technology)

a very large hole in the top of a volcano, usually caused by an eruption

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