led
(ɛd)
Random House Webster's College Dictionary
light-emitting diode: a semiconductor diode that emits light when conducting current, used in electronic equipment, esp. for displaying readings on digital watches, calculators, etc.
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lase
(ɪz)
Random House Webster's College Dictionary
to give off the coherent light of a laser; act as a laser.
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photodiode
(ˈfoʊ toʊˌdaɪ oʊd)
Random House Webster's College Dictionary
a photosensitive semiconductor diode.
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light-emitting diode
(light-emitting diode, LED)
Princeton's WordNet
diode such that light emitted at a p-n junction is proportional to the bias current; color depends on the material used
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led
(light-emitting diode, LED)
Princeton's WordNet
diode such that light emitted at a p-n junction is proportional to the bias current; color depends on the material used
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active
(ˈæk tɪv)
Random House Webster's College Dictionary
capable of amplifying or converting voltages or currents, as a transistor or diode.
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magnetron
(magnetron)
Princeton's WordNet
a diode vacuum tube in which the flow of electrons from a central cathode to a cylindrical anode is controlled by crossed magnetic and electric fields; used mainly in microwave oscillators
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bias
(ˈbaɪ əs)
Random House Webster's College Dictionary
the application of a steady voltage or current to an active device, as a diode or transistor, to produce a desired mode of operation.
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glow tube
(glow tube)
Princeton's WordNet
a gas-discharge tube consisting of a cold cathode and a diode in a tube filled with gas; the color of the glow depends on the particular gas
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zap
(æp)
Random House Webster's College Dictionary
to bombard with electrical current, radiation, laser beams, gunfire, etc.
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smart bomb
(ˈæl ɪk)
Random House Webster's College Dictionary
an air-to-surface missile guided to its target visually by television or a laser beam.
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zener diode
(ˈzi nər)
Random House Webster's College Dictionary
a semiconductor diode across which the reverse voltage remains almost constant over a wide range of currents, used esp. to regulate voltage.
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photocoagulation
(ˌfoʊ toʊ koʊˌæg yəˈleɪ ʃən)
Random House Webster's College Dictionary
a surgical technique that uses an intense beam of light, as from a laser, to seal blood vessels or coagulate tissue.
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photocoagulator
(photocoagulator)
Princeton's WordNet
surgical instrument containing a laser for use in photocoagulation
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laser beam
(laser beam)
Princeton's WordNet
a beam of light generated by a laser
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lidar
(ˈlaɪ dɑr)
Random House Webster's College Dictionary
a device similar to radar but using pulsed laser light instead of radio waves to detect particles and varying conditions in the atmosphere.
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smart bomb
(smart bomb)
Princeton's WordNet
a bomb that can be guided (by a laser beam or radio) to its target
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fiber optics
(ˈfaɪ bərˌglæs, -ˌglɑs)
Random House Webster's College Dictionary
the technology of sending computer data, video and voice signals, etc., through laser-generated light carried in bundles of ultrapure, transparent fiber
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lgb
(laser-guided bomb, LGB)
Princeton's WordNet
a smart bomb that seeks the laser light reflected off of the target and uses it to correct its descent
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laser-guided bomb
(laser-guided bomb, LGB)
Princeton's WordNet
a smart bomb that seeks the laser light reflected off of the target and uses it to correct its descent
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hologram
(ˈhɒl əˌgræm, ˈhoʊ lə-)
Random House Webster's College Dictionary
a three-dimensional image of an object produced by recording on a photographic plate or film the patterns of interference formed by a split laser beam and then illuminating the pattern with usu. coherent light.
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laser printer
(laser printer)
Princeton's WordNet
electrostatic printer that focuses a laser beam to form images that are transferred to paper electrostatically
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etch
(etch)
Princeton's WordNet
selectively dissolve the surface of (a semiconductor or printed circuit) with a solvent, laser, or stream of electrons
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stealth fighter
(stealth fighter)
Princeton's WordNet
a fighter that is difficult to detect by radar; is built for precise targeting and uses laser-guided bombs
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laser printer
(ˌlɑ səˈreɪ nə)
Random House Webster's College Dictionary
a high-speed, high-resolution computer printer that uses a laser to form dot-matrix patterns and an electrostatic process to print a page at a time.
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cd
(compact disk, compact disc, CD)
Princeton's WordNet
a digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laser
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compact disc
(compact disk, compact disc, CD)
Princeton's WordNet
a digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laser
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compact disk
(compact disk, compact disc, CD)
Princeton's WordNet
a digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laser
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holography
(holography)
Princeton's WordNet
the branch of optics that deals with the use of coherent light from a laser in order to make a hologram that can then be used to create a three-dimensional image
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page printer
(ˈpædʒ ən tri)
Random House Webster's College Dictionary
a high-speed, high-resolution computer printer that uses a light source, as a laser beam or electrically charged ions, to print a full page of text or graphics at a time.
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