Found 2 items, similar to nepheline.
English → English (WordNet) Definition: nepheline nepheline n : a whitish mineral consisting of sodium aluminum silicate or potassium aluminum silicate in crystalline form; used in the manufacture of ceramics and enamels [syn: nephelite]
English → English (gcide) Definition: Nepheline Nepheline \Neph"e*line\ (n[e^]f"[-e]*l[i^]n), Nephelite \Neph"e*lite\ (n[e^]f"[-e]*l[imac]t), n. [Gr. nefe`lh cloud: cf. F. n['e]ph['e]line. Cf. Nebula.] (Min.) A mineral occuring at Vesuvius, in glassy hexagonal crystals; also elsewhere, in grayish or greenish masses having a greasy luster, as the variety el[ae]olite. It is a silicate of aluminia, soda, and potash. [1913 Webster]