Windowpane /(?)/

Win·dow·pane

Windowpane

n.
  1. See Pane, n., 3 (b). (Arch.)
  2. A thin, spotted American turbot (Pleuronectes maculatus) remarkable for its translucency. It is not valued as a food fish. Called also spotted turbot, daylight, spotted sand flounder, and water flounder. (Zool.)