Crater
Crater (krā"tẽr) , noun
[Latin crater, cratera, a mixing vessel, the mouth of a volcano, Greek krath`r, from keranny`nai to mix; compare Sanskrit crī to mix, cir to cook, crā to cook. Compare Grail, in Holy Grail.]
1.
The basinlike opening or mouth of a volcano, through which the chief eruption comes; similarly, the mouth of a geyser, about which a cone of silica is often built up.
2.
(Military) The pit left by the explosion of a bomb, shell, or mine.
3.
(Astronomy) A constellation of the southern hemisphere; -- called also the Cup.