D defs.my
Entry 3 senses Webster, 1913

Glassy

/glăs'-ē/ · Glass·y · IPA /ˈɡlæsi/
01 a. Made of glass; vitreous; as, a glassy substance.
  1. 1.
    Made of glass; vitreous; as, a glassy substance.
  2. 2.
    Resembling glass in its properties, as in smoothness, brittleness, or transparency; as, a glassy stream; a glassy surface; the glassy deep.
  3. 3.
    Dull; wanting life or fire; lackluster; -- said of the eyes.
Phrases & compounds
Glassy feldspar — a variety of orthoclase; sanidine.