A0277500 (ə-năl′sēm′) also a·nal·cite(-sīt′)n. A white or light-colored zeolite, NaAlSi2O6·H2O, found in certain basalts.[French, from Greek analkimos, weak (from its weak electric power) : an-, not; see a-1 + alkimos, brave (from alkē, strength).]a·nal·cim′ic adj.