volcanic crater

Thesaurus

Noun

1.

volcanic crater - a bowl-shaped geological formation at the top of a volcanocratercaldera - a large crater caused by the violent explosion of a volcano that collapses into a depressiongeological formation, formation - (geology) the geological features of the earthmaar - a flat-bottomed volcanic crater that was formed by an explosion; often filled with watervolcano - a mountain formed by volcanic material