Source : Webster's Revised Unabridged Dictionary (1913)

Poecilitic \P[oe]`ci*lit"ic\, a. [Gr. poiki`los many-colored,
   variegated.] (Geol.)
   (a) Mottled with various colors; variegated; spotted; -- said
       of certain rocks.
   (b) Specifically: Of or pertaining to, or characterizing,
       Triassic and Permian sandstones of red and other colors.
       [Also written {poikilitic}.]