calderaPronunciation: /kɒlˈdɛːrə, -ˈdɪərə/Definition of caldera noun a large volcanic crater, especially one formed by a major eruption leading to the collapse of the mouth of the volcano. Origin: late 17th century: from Spanish, from late Latin caldaria 'boiling pot'caldera in other Oxford dictionaries Definition of caldera in the US English dictionary
