Lightning arrester

Lightning arrester
Lightning Light"ning (l[imac]t"n[i^]ng), n. [For lightening, fr. lighten to flash.] 1. A discharge of atmospheric electricity, accompanied by a vivid flash of light, commonly from one cloud to another, sometimes from a cloud to the earth. The sound produced by the electricity in passing rapidly through the atmosphere constitutes thunder. [1913 Webster]

2. The act of making bright, or the state of being made bright; enlightenment; brightening, as of the mental powers. [R.] [1913 Webster]

{Ball lightning}, a rare form of lightning sometimes seen as a globe of fire moving from the clouds to the earth.

{Chain lightning}, lightning in angular, zigzag, or forked flashes.

{Heat lightning}, more or less vivid and extensive flashes of electric light, without thunder, seen near the horizon, esp. at the close of a hot day.

{Lightning arrester} (Telegraphy), a device, at the place where a wire enters a building, for preventing injury by lightning to an operator or instrument. It consists of a short circuit to the ground interrupted by a thin nonconductor over which lightning jumps. Called also {lightning discharger}.

{Lightning bug} (Zo["o]l.), a luminous beetle. See {Firefly}.

{Lightning conductor}, a lightning rod.

{Lightning glance}, a quick, penetrating glance of a brilliant eye.

{Lightning rod}, a metallic rod set up on a building, or on the mast of a vessel, and connected with the earth or water below, for the purpose of protecting the building or vessel from lightning.

{Sheet lightning}, a diffused glow of electric light flashing out from the clouds, and illumining their outlines. The appearance is sometimes due to the reflection of light from distant flashes of lightning by the nearer clouds. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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Look at other dictionaries:

  • lightning arrester — ☆ lightning arrester n. a device that protects electronic or electrical equipment from lightning by diverting any surges of high voltage electricity caused by atmospheric discharges to a ground …   English World dictionary

  • lightning arrester — noun electrical device inserted in a power line to protect equipment from sudden fluctuations in current • Syn: ↑surge suppressor, ↑surge protector, ↑spike suppressor, ↑spike arrester • Hypernyms: ↑suppressor, ↑suppresser * * * …   Useful english dictionary

  • lightning arrester — žaibolaidis statusas T sritis fizika atitikmenys: angl. lightning arrester; lightning conductor vok. Blitzableiter, m rus. громоотвод, m; молниеотвод, m pranc. paratonnerre, m …   Fizikos terminų žodynas

  • lightning arrester — žaibolaidis statusas T sritis ekologija ir aplinkotyra apibrėžtis Įrenginys, saugantis statinius, elektros įrenginius nuo žaibų. Įrengiami virš saugomo statinio arba šalia jo. Turi įžeminimo įrenginį, kurio varža ne didesnė kaip 40 Ω. atitikmenys …   Ekologijos terminų aiškinamasis žodynas

  • lightning arrester — žaibo iškroviklis statusas T sritis fizika atitikmenys: angl. lightning arrester vok. Blitzschutzfunkenstrecke, f rus. грозовой разрядник, m pranc. parafoudre, m …   Fizikos terminų žodynas

  • lightning arrester — lightning rod, device that diverts lightning from the structure upon which it is placed …   English contemporary dictionary

  • lightning arrester — a device for preventing damage to radio, telephonic, or other electric equipment from lightning or other high voltage currents, using spark gaps to carry the current to the ground without passing through the device. Also called arrester. [1855… …   Universalium

  • lightning-arrester — lightˈning arrester noun An apparatus for protecting electrical apparatus in thunderstorms • • • Main Entry: ↑lightning …   Useful english dictionary

  • lightning arrester — noun Date: 1860 a device for protecting an electrical apparatus from damage by lightning …   New Collegiate Dictionary

  • lightning arrester — light′ning arrest er n. elm a device for preventing damage to radio, telephonic, or other electric equipment from lightning or other high voltage currents • Etymology: 1855–60 …   From formal English to slang

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