- an opening in the wall of a building, the side of a vehicle, etc., for the admission of air or light, or both, commonly fitted with a frame in which are set movable sashes containing panes of glass.
- such an opening with the frame, sashes, and panes of glass, or any other device, by which it is closed.
- the frame, sashes, and panes of glass, or the like, intended to fit such an opening: Finally the builders put in the windows.
- a windowpane.
- anything likened to a window in appearance or function, as a transparent section in an envelope, displaying the address.
- a period of time regarded as highly favorable for initiating or completing something: Investors have a window of perhaps six months before interest rates rise.
- Military. chaff1(def 5).
- Geology. fenster.
- Pharmacology. the drug dosage range that results in a therapeutic effect, a lower dose being insufficient and a higher dose being toxic.
- launch window.
- a specific area at the outer limits of the earth's atmosphere through which a spacecraft must reenter to arrive safely at its planned destination.
- Computers. a section of a display screen that can be created for viewing information from another part of a file or from another file: The split screen feature enables a user to create two or more windows.
- to furnish with a window or windows.
- Obsolete. to display or put in a window.
Origin of window
Examples from the Web for windowless
The next day the whole raid force piled into a windowless conference room at Fort Campbell.I Shot Bin Laden
November 16, 2014
It was a windowless, narrow room with a bed in the far left corner.A Murder in Detroit’s Sexual Underworld
October 8, 2014
Few journalists have access to the information, and those who do work in a windowless cubbyhole on a top floor.Jill Abramson Talks Obama Secrecy and Her New York Times Firing
July 10, 2014
We sit at a card table in the center of a windowless, white-walled prison meeting room.The Party Monster Lives For the Applause: Michael Alig’s Second Act
February 28, 2014
He was shoved into a concrete, windowless cell with a raised cement area that served as a bed and two ﬁlthy blankets.The Billionaire and the Fugitive
Meir Doron, Joseph Gelman
July 23, 2011
The walls were a flat metallic gray, unadorned and windowless.The Highest Treason
The tube was a long sleek affair, windowless, shaped like a bullet.Starman's Quest
Figures were moving about the gaunt and windowless farm buildings.The Invaders
He was glad to see that the wall across the court was windowless.The Girl and The Bill
They were probably stored in the top room of the tower, which is windowless.Oxford and its Story
- a light framework, made of timber, metal, or plastic, that contains glass or glazed opening frames and is placed in a wall or roof to let in light or air or to see throughRelated adjective: fenestral
- an opening in the wall or roof of a building that is provided to let in light or air or to see through
- See windowpane
- the display space in and directly behind a shop windowthe dress in the window
- any opening or structure resembling a window in function or appearance, such as the transparent area of an envelope revealing an address within
- an opportunity to see or understand something usually unseena window on the workings of Parliament
- a period of unbooked time in a diary, schedule, etc
- short for launch window, weather window
- physics a region of the spectrum in which a medium transmits electromagnetic radiationSee also radio window
- computing an area of a VDU display that may be manipulated separately from the rest of the display area; typically different files can be displayed simultaneously in different overlapping windows
- (modifier) of or relating to a window or windowsa window ledge
- out of the window informal dispensed with; disregarded
- (tr) to furnish with or as if with windows
Word Origin and History for windowless
early 13c., literally "wind eye," from Old Norse vindauga, from vindr "wind" (see wind (n.1)) + auga "eye. (see eye (n.)). Replaced Old English eagþyrl, literally "eye-hole," and eagduru, literally "eye-door."
Originally an unglazed hole in a roof, most Germanic languages adopted a version of Latin fenestra to describe the glass version, and English used fenester as a parallel word till mid-16c. Window dressing is first recorded 1790; figurative sense is from 1898. Window seat is attested from 1778. Window-shopping is recorded from 1922. Window of opportunity (1979) is from earlier figurative use in U.S. space program, e.g. launch window (1965).
- A fenestra.
Idioms and Phrases with windowless
see out the window.