- Types:
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infrared, infrared emission, infrared light, infrared radiation
electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
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light, visible light, visible radiation
(physics) electromagnetic radiation that can produce a visual sensation
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UV, ultraviolet, ultraviolet illumination, ultraviolet light, ultraviolet radiation
radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays
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beam, beam of light, irradiation, light beam, ray, ray of light, shaft, shaft of light
a column of light (as from a beacon)
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candle flame, candlelight
the light provided by a burning candle
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corona
one or more circles of light seen around a luminous object
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counterglow, gegenschein
a faint spot of light in the night sky that appears directly opposite the position of the sun; a reflection of sunlight by micrometeoric material in space
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daylight
light during the daytime
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firelight
the light of a fire (especially in a fireplace)
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fluorescence
light emitted during absorption of radiation of some other (invisible) wavelength
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friar's lantern, ignis fatuus, jack-o'-lantern, will-o'-the-wisp
a pale light sometimes seen at night over marshy ground
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gaslight
light yielded by the combustion of illuminating gas
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glow, glowing, radiance
the amount of electromagnetic radiation leaving or arriving at a point on a surface
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glow
a steady even light without flames
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half-light
a greyish light (as at dawn or dusk or in dim interiors)
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glow, incandescence
the phenomenon of light emission by a body as its temperature is raised
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lamplight
light from a lamp
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luminescence
light not due to incandescence; occurs at low temperatures
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meteor, shooting star
a streak of light in the sky at night that results when a meteoroid hits the earth's atmosphere and air friction causes the meteoroid to melt or vaporize or explode
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Moon, moonlight, moonshine
the light of the Moon
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starlight
the light of the stars
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sun, sunlight, sunshine
the rays of the sun
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scintillation
(physics) a flash of light that is produced in a phosphor when it absorbs a photon or ionizing particle
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streamer
light that streams
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torchlight
light from a torch or torches
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twilight
the diffused light from the sky when the sun is below the horizon but its rays are refracted by the atmosphere of the earth
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sun-ray, sunray
a ray of artificial ultraviolet light from a sunray lamp
