Entry 1 sense Webster, 1913 Lithiophilite /(lĭth`ĭ*ŏf"ĭ*līt)/ · Lith·i·oph·i·lite · IPA 01 n. A phosphate of manganese and lithium; a variety of triphylite. 1. A phosphate of manganese and lithium; a variety of triphylite.(Min.)