Defn: A mineral of a dark bluish color, related to amphibole. It is characteristic of certain crystalline rocks.

GLAUCOSIS
Glau*co"sis, n. Etym: [NL., fr. Gr. (Med.)

Defn: Same as Glaucoma.

GLAUCOUS
Glau"cous, a. Etym: [L. glaucus, Gr.

1. Of a sea-green color; of a dull green passing into grayish blue. Lindley.

2. (Bot.)

Defn: Covered with a fine bloom or fine white powder easily rubbed off, as that on a blue plum, or on a cabbage leaf. Gray.

GLAUCUS
Glau"cus, n. Etym: [L., sea green.] (Zoöl.)

Defn: A genus of nudibranchiate mollusks, found in the warmer latitudes, swimming in the open sea. These mollusks are beautifully colored with blue and silvery white.

GLAUM
Glaum, v. i. Etym: [Etymol. uncertain.]