Source : Webster's Revised Unabridged Dictionary (1913)

Metope \Met"o*pe\, n. [NL., fr. Gr. ?; ? with, between + ?
   opening, hole, the hole in the frieze between the beam ends.]
   1. (Arch.) The space between two triglyphs of the Doric
      frieze, which, among the ancients, was often adorned with
      carved work. See Illust. of {Entablature}.

   2. (Zo["o]l.) The face of a crab.

   Note: In the Parthenon, groups of centaurs and heroes in high
         relief occupy the metopes.