单词 caldera 释义 ‖ caldera Geol.|kaldera|[a. Sp. caldera = Pg. caldeira, F. chaudire cauldron, kettle, boiler:—L. caldria, pl. of prec.]A deep cauldron-like cavity on the summit of an extinct volcano.1865Lyell Elem. Geol. (ed. 6) 632 Enlarged afterwar...