Botryogen

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Botryogen \Bot"ry*o*gen\, n. [Gr. ? cluster of grapes + -gen.]
     (Min.)
     A hydrous sulphate of iron of a deep red color. It often
     occurs in botryoidal form.
     [1913 Webster] Botryoid