crater
['kretɚ]
n. 火山口, 环山, 弹坑

[] 焊口; 火山石; 弧坑; 焰口

[医] 喷火口, 火山口

1. A large crater formed by volcanic explosion or by collapse of a volcanic cone.
   火山口火山爆而形环形山山核崩塌而形环形山
2. Flames blazed out from the crater of the volcano.
   火焰火山口猛烈喷。
3. Lava boiled up from the crater of the volcano.
   熔岩火山口沸腾着升起。

crater
[ noun ]

1. a bowl-shaped geological formation at the top of a volcano

<noun.object>

2. a faint constellation in the southern hemisphere near Hydra and Corvus

<noun.object>

3. a bowl-shaped depression formed by the impact of a meteorite or bomb

<noun.object>

Crater \Cra"ter\ (kr[=a]"t[~e]r), n. [L. crater, cratera, a
mixing vessel, the mouth of a volcano, Gr. krath`r, fr.
keranny`nai to mix; cf. Skr. [,c]r[imac] to mix, [,c]ir to
cook, [,c]r[=a] to cook. Cf. {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. (Mil.) The pit left by the explosion of a bomb, shell, or
mine.

3. (Astron.) A constellation of the southen hemisphere; --
called also the {Cup}.