—n. 1. the cup-shaped depression or cavity on the surface of the earth or other heavenly body marking the orifice of a volcano.
2. Also called impact crater, meteorite crater. (on the surface of the earth, moon, etc.) a bowl-shaped depression with a raised rim, formed by the impact of a meteoroid. Cf. astrobleme. 3. Astron.(on the surface of the moon) a circular or almost circular area having a depressed floor, almost always containing a central mountain and usually completely enclosed by walls that are often higher than those of a walled plain; ring formation; ring. Cf. walled plain. 4. the bowllike orifice of a geyser.
5. the hole or pit in the ground where a bomb, shell, or military mine has exploded.
6. Elect.the cavity formed in a positive carbon electrode by an electric arc.
7. Gk. and Rom. Antiq.krater.
8. Metalworking.a depression at the end of a bead produced by welding.
9. (cap.) Astron.the Cup, a small southern constellation west of Corvus and north of Hydra.
—v.t. 1. to make craters in: Bombs had cratered the landscape. 2. Slang. a. to cancel, abandon, or cast aside: to crater the new project. b. to destroy or ruin: One more disappointment won't crater me.
—v.i. to form a crater or craters: The surface of the concrete cratered and cracked under the repeated impacts.
Pronunciation: (krā'tur),[key] —n. Joseph Force Pronunciation: (fôrs, fōrs),[key] 1889–?, a judge of the New York State Supreme Court: his mysterious disappearance on August 6, 1930, has never been solved.