[1] : The Collaborative International Dictionary of English v.0.48

crater \cra"ter\ kr=a"t~er, n. l. crater, cratera, a
   mixing vessel, the mouth of a volcano, gr. krath`r, fr.
   keranny`nai to mix; cf. skr. ,crimac to mix, ,cir to
   cook, ,cr=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.
      1913 webster

   2. mil. the pit left by the explosion of a bomb, shell, or
      mine.
      1913 webster

   3. astron. a constellation of the southen hemisphere; --
      called also the cup.
      1913 webster
see also:
grail cup 

[2] : WordNet (r) 2.0

crater
     n 1: a bowl-shaped opening at the top of a volcano syn: volcanic
          crater
     2: a faint constellation in the southern hemisphere near hydra
        and corvus
     3: a bowl-shaped depression formed by the impact of a meteorite
        or bomb
see also:
volcanic crater 

[3] : Moby Thesaurus II by Grady Ward, 1.0

95 moby thesaurus words for "crater":
   abysm, abyss, alveolation, alveolus, antrum, armpit, basin,
   birthmark, blackhead, bleb, blemish, blister, bowl, bulla, cavity,
   chasm, check, cicatrix, comedo, concave, concavity, crack, craze,
   crevasse, crypt, cup, deep, defacement, defect, deformation,
   deformity, depression, depth, dip, disfiguration, disfigurement,
   distortion, fault, flaw, fold, follicle, freckle, funnel chest,
   gulf, hemangioma, hickey, hole, hollow, hollow shell, keloid, kink,
   lacuna, lentigo, milium, mole, needle scar, nevus, pimple, pit,
   pock, pocket, pockmark, port-wine mark, port-wine stain,
   punch bowl, pustule, rift, scab, scar, scoop, scratch,
   sebaceous cyst, shaft, shell, sink, sinus, socket, split,
   strawberry mark, sty, track, trough, twist, verruca, vesicle, vug,
   wale, warp, wart, weal, well, welt, wen, whitehead,
   yawning abyss

Crater >> C Words
Crater, definition of term: Crater
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