| Noun | 1. | crater - a bowl-shaped opening at the top of a volcanocaldera - 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 volcano - a mountain formed by volcanic material | |
| 2. | Crater - a faint constellation in the southern hemisphere near Hydra and Corvus | |
| 3. | crater - a bowl-shaped depression formed by the impact of a meteorite or bombcollector - a crater that has collected cosmic material hitting the earth | |