arc lamp definition, arc lamp meaning | English dictionary

Search also in: Web News Encyclopedia Images

arc light


      n   a light source in which an arc between two electrodes, usually carbon, produces intense white illumination,   (Also called)    arc lamp         
English Collins Dictionary - English Definition & Thesaurus  
a    any of a number of devices that produce illumination  
an electric lamp, a gas lamp, an oil lamp     
b    (in combination)  
2    a device for holding one or more electric light bulbs  
a table lamp     
3    a vessel in which a liquid fuel is burned to supply illumination  
4    any of a variety of devices that produce radiation, esp. for therapeutic purposes  
an ultraviolet lamp     
     (C13 lampe, via Old French from Latin lampas, from Greek, from lampein to shine)  

Aldis lamp  
      n   a portable lamp used to transmit Morse code  
     (C20: originally a trademark, after A. C. W. Aldis, its inventor)  
Davy lamp  
      n      See       safety lamp  
     (C19: named after Sir H. Davy, who invented it)  
daylight lamp  
      n     (Physics)   a lamp whose light has a range of wavelengths similar to that of natural sunlight  
electric-discharge lamp  
      n      another name for       fluorescent lamp  
flame lamp  
      n     (Electrical engineering)   a filament lamp in which the bulb resembles the shape of a flame  
fluorescent lamp  
1    a type of lamp in which an electrical gas discharge is maintained in a tube with a thin layer of phosphor on its inside surface. The gas, which is often mercury vapour, emits ultraviolet radiation causing the phosphor to fluoresce  
2    a type of lamp in which an electrical discharge is maintained in a tube containing a gas such as neon, mercury vapour, or sodium vapour at low pressure. Gas atoms in the discharge are struck by electrons and fluoresce  
glow lamp  
      n   a small light consisting of two or more electrodes in an inert gas, such as neon, at low pressure, across which an electrical discharge occurs when the voltage applied to the electrodes exceeds the ionization potential  
hurricane lamp  
      n   a paraffin lamp, with a glass covering to prevent the flame from being blown out,   (Also called)    storm lantern  
incandescent lamp  
      n   a source of light that contains a heated solid, such as an electrically heated filament  
lamp chimney  
      n   a glass tube that surrounds the wick in an oil lamp  
lamp shell  
      n      another name for a       brachiopod  
     (C19: from its likeness in shape to an ancient Roman oil lamp)  
lamp standard  
      n   a tall metal or concrete post supporting a street lamp  
lava lamp  
      n   a decorative type of lamp in which a luminous viscous material moves in constantly changing shapes  
     (C20: from the resemblance of the shapes to molten lava in water)  
mercury-vapour lamp  
      n   a lamp in which an electric discharge through a low pressure of mercury vapour is used to produce a greenish-blue light. It is used for street lighting and is also a source of ultraviolet radiation  
neon lamp  
      n   a glass bulb or tube containing neon at low pressure that gives a pink or red glow when a voltage is applied  
pilot lamp  
      n   a small light in an electric circuit or device that lights up when the circuit is closed or when certain conditions prevail  
quartz-iodine lamp   , quartz lamp  
      n   a type of tungsten-halogen lamp containing small amounts of iodine and having a quartz envelope, operating at high temperature and producing an intense light for use in car headlamps, etc.  
riding lamp   , light  
      n   a light on a boat or ship showing that it is at anchor  
safety lamp  
      n   an oil-burning miner's lamp in which the flame is surrounded by a metal gauze to prevent it from igniting combustible gas,   (Also called)    Davy lamp  
sanctuary lamp  
      n     (Christianity)   a lamp, usually red, placed in a prominent position in the sanctuary of a church, that when lit indicates the presence of the Blessed Sacrament  
sodium lamp  
      n      another name for       sodium-vapour lamp  
sodium-vapour lamp  
      n   a type of electric lamp consisting of a glass tube containing neon and sodium vapour at low pressure through which an electric current is passed to give an orange light. They are used in street lighting  
spirit lamp  
      n   a lamp that burns methylated or other spirits instead of oil  
sun lamp  
1    a lamp that generates ultraviolet rays, used for obtaining an artificial suntan, for muscular therapy, etc.  
2    a lamp used in film studios, etc., to give an intense beam of light by means of parabolic mirrors  
tungsten lamp  
      n   a lamp in which light is produced by a tungsten filament heated to incandescence by an electric current. The glass bulb enclosing the filament contains a low pressure of inert gas, usually argon. Sometimes small amounts of a halogen, such as iodine, are added to improve the intensity (tungsten-halogen lamp)  

English Collins Dictionary - English Definition & Thesaurus  




English Collins Dictionary - English synonyms & Thesaurus  

Collaborative Dictionary     English Definition
1. conical-shaped iron basket brazier, holding a fire to be burned as a beacon 2. open lamp or firepan carried on a pole, once used as portable illumination
To add entries to your own vocabulary, become a member of Reverso community or login if you are already a member. It's easy and only takes a few seconds:
Or sign up in the traditional way