- A device to determine the height of clouds at night. It consists of a powerful projection lamp (searchlight) and a ceilometer to measure the angle of elevation subtended by the lamp beam. During the day, a ceilometer is used for this purpose.
Aviation dictionary. 2014.
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ceiling light — ceiling light, Meteorology. a small searchlight used to determine the altitude of the lowest clouds … Useful english dictionary
ceiling light projector — debesų aukščiamatis statusas T sritis Standartizacija ir metrologija apibrėžtis Debesų aukščio virš Žemės paviršiaus matuoklis. atitikmenys: angl. ceiling light projector vok. Wolkenhöhenmesser, m rus. облачный прожектор, m pranc. célomètre, m … Penkiakalbis aiškinamasis metrologijos terminų žodynas
ceiling rose — see ↑rose1 • • • Main Entry: ↑ceil * * * ˈceiling rose f17 [ceiling rose] (also rose … Useful english dictionary
light fitting — UK US noun [countable] [singular light fitting plural light fittings] the part of a light that is fixed to the wall or ceiling, where you put the light bulb Thesaurus: parts of lamps and lights … Useful english dictionary
light fixture — light ,fixture noun count the part of a light that is attached to the wall or ceiling, where you put the LIGHT BULB … Usage of the words and phrases in modern English
light bulb — ► NOUN ▪ a glass bulb containing inert gas, fitted into a lamp or ceiling socket, which provides light when an electric current is passed through it … English terms dictionary
Ceiling fan — A ceiling fan is a fan, usually electrically powered, suspended from the ceiling of a room, that uses hub mounted rotating paddles to circulate air. Casablanca Fan Co. ceiling fan from the early 1980s. A ceiling fan rotates much mo … Wikipedia
Light fixture — This article is about architectural light fixtures. For stage lighting, see Stage lighting instrument. Many various light fixtures A light fixture, light fitting, or luminaire is an electrical device used to create artificial light and/or… … Wikipedia
Ceiling projector — The ceiling projector or cloud searchlight is used to measure the height of the base of clouds (called the ceiling) above the ground. It is used in conjunction with an alidade, usually positioned 1000 ft (304.8 m) away and wherever possible set… … Wikipedia
ceiling — ceilinged, adj. /see ling/, n. 1. the overhead interior surface of a room. 2. the top limit imposed by law on the amount of money that can be charged or spent or the quantity of goods that can be produced or sold. 3. Aeron. a. the maximum… … Universalium