Source : Webster's Revised Unabridged Dictionary (1913)

Glimmer \Glim"mer\, n.
   1. A faint, unsteady light; feeble, scattered rays of light;
      also, a gleam.

            Gloss of satin and glimmer of pearls. --Tennyson.

   2. Mica. See {Mica}. --Woodsward.

   {Glimmer gowk}, an owl. [Prov. Eng.] --Tennyson.