window

i. Any device introduced into the atmosphere to produce an appreciable radar echo, usually for tracking some airborne device or tracing the wind.
ii. A World War II code name for a type of radar-jamming device employed to confuse the operators of enemy radars (also referred to by the code names of rope, chaff, and clutter). One type of window consists of packages containing thousands of small strips of paper-backed tin-foil, which may be dropped from aircraft and balloons, ejected from rockets, and carried within balloons. The packages burst open upon ejection, scattering the tinfoil widely and producing a radar echo, which looks like a small shower or a tight formation of aircraft on plan-position-indicator scopes. The same as chaff.
iii. A specific period of time during which there is an opportunity, such as a weather window.

Aviation dictionary. 2014.

Look at other dictionaries:

  • Window — Win dow, n. [OE. windowe, windoge, Icel. vindauga window, properly, wind eye; akin to Dan. vindue. ????. See {Wind}, n., and {Eye}.] [1913 Webster] 1. An opening in the wall of a building for the admission of light and air, usually closed by… …   The Collaborative International Dictionary of English

  • window — window, casement, dormer, oriel can mean an opening in the wall of a building that is usually covered with glass and serves to admit light and air. Window is the ordinary general term for the entire structure, including both its framework and the …   New Dictionary of Synonyms

  • window — (n.) early 13c., lit. wind eye, from O.N. vindauga, from vindr wind (see WIND (Cf. wind) (n.1)) + auga eye. (see EYE (Cf. eye) (n.)). Replaced O.E. eagþyrl, lit. eye hole, and eagduru, lit …   Etymology dictionary

  • window — [win′dō] n. [ME windoge < ON vindauga, window, lit., wind eye < vindr, WIND2 + auga, an eye; akin to Ger auge, EYE] 1. a) an opening in a building, vehicle, or container, for letting in light or air or for looking through, usually having a… …   English World dictionary

  • Window — (von engl. window „Fenster“) oder Plural Windows ([ˈwɪndoʊz]) stehen für: Microsoft Windows, ein Betriebssystem der Firma Microsoft Fenster (Computer), ein Benutzerschnittstellenkonzept bei Computern X Window System, eine grafische… …   Deutsch Wikipedia

  • window — WÍNDOW s.n. Fereastră, geam; vitrină. [pr. uíndău] (din engl. window) Trimis de tavi, 14.05.2008. Sursa: MDN  WINDOW [UÍNDOU] s. n. fereastră, geam; vitrină. (< engl. window) Trimis de raduborza, 14.02.2008. Sursa: MDN …   Dicționar Român

  • window — ► NOUN 1) an opening in a wall or roof, fitted with glass in a frame to let in light or air and allow people to see out. 2) an opening through which customers are served in a bank, ticket office, etc. 3) a transparent panel in an envelope to show …   English terms dictionary

  • Window — Win dow, v. t. [imp. & p. p. {Windowed}; p. pr. & vb. n. {Windowing}.] [1913 Webster] 1. To furnish with windows. [1913 Webster] 2. To place at or in a window. [R.] [1913 Webster] Wouldst thou be windowed in great Rome and see Thy master thus… …   The Collaborative International Dictionary of English

  • window n — window of opportunity …   English expressions

  • Window — This article is about the part of a building. For the Microsoft operating system, see Microsoft Windows. For other uses, see Window (disambiguation) and Windows (disambiguation). Pair of windows, Old Ship Church, Hingham, Massachusetts …   Wikipedia

  • window — windowless, adj. windowy, adj. /win doh/, n. 1. 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 …   Universalium

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