What is "flashed glass"

Flash \Flash\ (fl[a^]sh), v. t.

1. To send out in flashes; to cause to burst forth with sudden flame or light.

   The chariot of paternal Deity, Flashing thick flames.
   --Milton.

2. To convey as by a flash; to light up, as by a sudden flame or light; as, to flash a message along the wires; to flash conviction on the mind.

3. (Glass Making) To cover with a thin layer, as objects of glass with glass of a different color. See Flashing, n., 3 (b) .

4. To trick up in a showy manner.

   Limning and flashing it with various dyes.
   --A. Brewer.

5. [Perh. due to confusion between flash of light and plash, splash.] To strike and throw up large bodies of water from the surface; to splash. [Obs.]

   He rudely flashed the waves about.
   --Spenser.

   Flashed glass. See Flashing, n., 3.