WINDOW

noun Usage: often attributive see: eye Date: 13th century 1. an opening especially in the wall of a building for admission of light and air that is usually closed by casements or sashes containing transparent material (as glass) and capable of being opened and shut, ~pane , a space behind a ~ of a retail store containing displayed merchandise, an opening in a partition or wall through which business is conducted , a means of entrance or access, an opening (as a shutter, slot, or valve) that resembles or suggests a ~, the transparent panel or opening of a ~ envelope, the framework (as a shutter or sash with its fittings) that closes a ~ opening, chaff 4, a range of wavelengths in the electromagnetic spectrum to which a planet's atmosphere is transparent, 8. an interval of time within which a rocket or spacecraft must be launched to accomplish a particular mission, an interval of time during which certain conditions or an opportunity exists , an area at the limits of the earth's sensible atmosphere through which a spacecraft must pass for successful reentry, any of various rectangular boxes appearing on a computer screen that display files or program output, that can usually be moved and resized, and that facilitate multitasking, ~less adjective