Found 2 items, similar to gibbsite.
English → English (WordNet) Definition: gibbsite gibbsite n : white crystalline mineral consisting of aluminum hydroxide; a constituent of bauxite and a source of alumina
English → English (gcide) Definition: Gibbsite Gibbsite \Gibbs"ite\, n. [Named after George Gibbs.] (Min.) A hydrate of alumina. [1913 Webster]