资料来源 : Webster's Revised Unabridged Dictionary (1913)

Gibbsite \Gibbs"ite\, n. [Named after George Gibbs.] (Min.)
   A hydrate of alumina.

资料来源 : WordNet®

gibbsite
     n : white crystalline mineral consisting of aluminum hydroxide;
         a constituent of bauxite and a source of alumina