crater

Noun
  1. A bowl-shaped geological formation at the top of a volcano (synset 109495543)
    is a type of: formation, geological formation - (geology) the geological features of the earth
    subtypes:
    • caldera - a large crater caused by the violent explosion of a volcano that collapses into a depression
    • maar - a flat-bottomed volcanic crater that was formed by an explosion; often filled with water
    is a part of: volcano - a mountain formed by volcanic material
    same as: volcanic crater
  2. A faint constellation in the southern hemisphere near Hydra and Corvus (synset 109282282)
    is an instance of: constellation - a configuration of stars as seen from the earth
  3. A bowl-shaped depression formed by the impact of a meteorite or bomb (synset 109282125)
    is a type of: depression, natural depression - a sunken or depressed geological formation
    subtypes:
    • collector - a crater that has collected cosmic material hitting the earth
    • lunar crater - a crater on the Earth's Moon

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