a. [ L. gummi gum + -ferous. ] Producing gum; gum-bearing. [ 1913 Webster ]
n. The state or quality of being gummy; viscousness. [ 1913 Webster ]
n. [ So called because it occurs in rounded or flattened pieces which look like gum. ] (Min.) A yellow amorphous mineral, essentially a hydrated oxide of uranium derived from the alteration of uraninite. [ 1913 Webster ]