actinic ray

Definitions of actinic ray
1

n electromagnetic radiation that can produce photochemical reactions

Synonyms:
actinic radiation
Types:
show 27 types...
hide 27 types...
infrared, infrared emission, infrared light, infrared radiation
electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
light, visible light, visible radiation
(physics) electromagnetic radiation that can produce a visual sensation
UV, ultraviolet, ultraviolet illumination, ultraviolet light, ultraviolet radiation
radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays
beam, beam of light, irradiation, light beam, ray, ray of light, shaft, shaft of light
a column of light (as from a beacon)
candle flame, candlelight
the light provided by a burning candle
corona
one or more circles of light seen around a luminous object
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
daylight
light during the daytime
firelight
the light of a fire (especially in a fireplace)
fluorescence
light emitted during absorption of radiation of some other (invisible) wavelength
friar's lantern, ignis fatuus, jack-o'-lantern, will-o'-the-wisp
a pale light sometimes seen at night over marshy ground
gaslight
light yielded by the combustion of illuminating gas
glow, glowing, radiance
the amount of electromagnetic radiation leaving or arriving at a point on a surface
glow
a steady even light without flames
half-light
a greyish light (as at dawn or dusk or in dim interiors)
glow, incandescence
the phenomenon of light emission by a body as its temperature is raised
lamplight
light from a lamp
luminescence
light not due to incandescence; occurs at low temperatures
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
Moon, moonlight, moonshine
the light of the Moon
starlight
the light of the stars
sun, sunlight, sunshine
the rays of the sun
scintillation
(physics) a flash of light that is produced in a phosphor when it absorbs a photon or ionizing particle
streamer
light that streams
torchlight
light from a torch or torches
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
sun-ray, sunray
a ray of artificial ultraviolet light from a sunray lamp
Type of:
electromagnetic radiation, electromagnetic wave, nonparticulate radiation
radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.