photo-electric
Webster Dictionary
acting by the operation of both light and electricity; -- said of apparatus for producing pictures by electric light
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electrical
Webster Dictionary
pertaining to electricity; consisting of, containing, derived from, or produced by, electricity; as, electric power or virtue; an electric jar; electric effects; an electric spark
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gas-discharge lamp
(electric-discharge lamp, gas-discharge lamp)
Princeton's WordNet
an electric lamp in which the light comes from an electric discharge between two electrodes in a glass tube
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electric-discharge lamp
(electric-discharge lamp, gas-discharge lamp)
Princeton's WordNet
an electric lamp in which the light comes from an electric discharge between two electrodes in a glass tube
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malapterurus
Webster Dictionary
a genus of African siluroid fishes, including the electric catfishes. See Electric cat, under Electric
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selenium
Webster Dictionary
a nonmetallic element of the sulphur group, and analogous to sulphur in its compounds. It is found in small quantities with sulphur and some sulphur ores, and obtained in the free state as a dark reddish powder or crystalline mass, or as a dark metallic-looking substance. It exhibits under the action of light a remarkable variation in electric conductivity, and is used in certain electric apparatus. Symbol Se. Atomic weight 78.9
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crayon
Webster Dictionary
a pencil of carbon used in producing electric light
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actinism
Webster Dictionary
the property of radiant energy (found chiefly in solar or electric light) by which chemical changes are produced, as in photography
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crampfish
Webster Dictionary
the torpedo, or electric ray, the touch of which gives an electric shock. See Electric fish, and Torpedo
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fulgurata
Webster Dictionary
a spectro-electric tube in which the decomposition of a liquid by the passage of an electric spark is observed
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light
(ɪt)
Random House Webster's College Dictionary
to turn or switch on (an electric light):
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light bulb
(ɪt)
Random House Webster's College Dictionary
an electric light bulb; incandescent lamp.
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gymnotus
Webster Dictionary
a genus of South American fresh-water fishes, including the Gymnotus electricus, or electric eel. It has a greenish, eel-like body, and is possessed of electric power
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photodetector
(ˈfoʊ toʊ dɪˌtɛk tər)
Random House Webster's College Dictionary
any device that converts light into an electric signal photoelectrically.
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dimmer
(ˈdɪm ər)
Random House Webster's College Dictionary
a rheostat or similar device by which the intensity of an electric light may be varied.
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lamp
(lamp)
Princeton's WordNet
a piece of furniture holding one or more electric light bulbs
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arc lamp
(arc lamp, arc light)
Princeton's WordNet
a lamp that produces light when electric current flows across the gap between two electrodes
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arc light
(arc lamp, arc light)
Princeton's WordNet
a lamp that produces light when electric current flows across the gap between two electrodes
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electromagnetic wave
(ɪˌlɛk troʊ mægˈnɛt ɪk)
Random House Webster's College Dictionary
a wave propagated at the speed of light by the periodic variations of electric and magnetic fields.
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arc light
(ˈɑrtʃˌweɪ)
Random House Webster's College Dictionary
an electric lamp in which the light source is a high-intensity arc between carbon rods or metal electrodes.
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dimmer
(dimmer)
Princeton's WordNet
a rheostat that varies the current through an electric light in order to control the level of illumination
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fluorescent lamp
(ʊˈrɛs ənt, flɔ-, floʊ-)
Random House Webster's College Dictionary
a tubular electric discharge lamp in which light is produced by the fluorescence of phosphors coating the inside of the tube.
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mercury-vapor lamp
(ˈmɜr kyə ri)
Random House Webster's College Dictionary
a lamp producing a light with a high actinic and ultraviolet content by means of an electric arc in mercury vapor.
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voltaic
Webster Dictionary
of or pertaining to Alessandro Volta, who first devised apparatus for developing electric currents by chemical action, and established this branch of electric science; discovered by Volta; as, voltaic electricity
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electro-dynamical
Webster Dictionary
pertaining to the movements or force of electric or galvanic currents; dependent on electric force
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electro-telegraphy
Webster Dictionary
the art or science of constructing or using the electric telegraph; the transmission of messages by means of the electric telegraph
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sodium-vapor lamp
(ˌtraɪ pɒl iˈfɒs feɪt)
Random House Webster's College Dictionary
an electric lamp in which sodium vapor is activated by current passing between two electrodes, producing a yellow, glareless light: used on streets and highways.
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sodium-vapour lamp
(sodium-vapor lamp, sodium-vapour lamp)
Princeton's WordNet
lamp in which an electric current passed through a tube of sodium vapor makes a yellow light; used is street lighting
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sodium-vapor lamp
(sodium-vapor lamp, sodium-vapour lamp)
Princeton's WordNet
lamp in which an electric current passed through a tube of sodium vapor makes a yellow light; used is street lighting
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cathode
Webster Dictionary
the part of a voltaic battery by which the electric current leaves substances through which it passes, or the surface at which the electric current passes out of the electrolyte; the negative pole; -- opposed to anode
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