D defs.my
Entry 1 sense Webster, 1913

Prism glass

· IPA
01 Glass with one side smooth and the other side formed into sharp-edged ridges so as to reflect the light that passes through, used at window…
  1. 1.
    Glass with one side smooth and the other side formed into sharp-edged ridges so as to reflect the light that passes through, used at windows to throw the light into the interior.