meteorite crater
A crater formed by the impact of a meteorite. Technical term used in geology and astronomy.
この地域には隕石孔がいくつか見られる。
Several meteorite craters can be seen in this area.
クレーター is a more general term for any crater (meteorite, volcanic, etc.), while 隕石孔 specifically refers to a crater caused by a meteorite impact.
Compound of 隕石 (meteorite) and 孔 (hole, cavity). The exact historical derivation is uncertain, but the word is a straightforward modern technical compound.