WINDOWPANE
windowpane, Scophthalmus aquosus
(noun) very thin translucent flounder of the Atlantic coast of North America
windowpane, window
(noun) a pane of glass in a window; “the ball shattered the window”
Source: WordNet® 3.1
Etymology
Noun
windowpane (plural windowpanes)
A piece of glass filling a window or a section of a window
(slang) A quadruple dose of liquid LSD.
Source: Wiktionary
Win"dow*pane`, n.
1. (Arch.)
Definition: See Pane, n., (3) b. [In this sense, written also window pane.]
2. (Zoöl.)
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition