POECILITIC

Poe`ci*lit"ic, a. Etym: [Gr. (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.]

Source: Webster’s Unabridged Dictionary 1913 Edition