A crater formed by an explosion at or near the ground surface; especially (Geology) such a crater formed by volcanic activity, typically by the explosive evaporation of groundwater heated by magma.
Origin
Late 19th century.
Definition of explosion crater in US English:
explosion crater
noun
A crater formed by an explosion at or near the ground surface; especially (Geology) such a crater formed by volcanic activity, typically by the explosive evaporation of groundwater heated by magma.