Visible electromagnetic radiation. The human eye can typically detect radiation (light) in the wavelength range of about 400 to 750 nanometers. Nearby shorter and longer wavelength ranges, although not visible, are commonly called ultraviolet and infrared light.
User Defined Definitions
"any device serving as a source of illumination"
"a particular perspective or aspect of a situation"
"the quality of being luminous; emitting or reflecting light"
"an illuminated area"
"a condition of spiritual awareness; divine illumination"
"the visual effect of illumination on objects or scenes as created in pictures"
"a person regarded very fondly"
"having abundant light or illumination"
"mental understanding as an enlightening experience"
"merriment expressed by a brightness or gleam or animation of countenance"
"public awareness"
"a divine presence believed by Quakers to enlighten and guide the soul"
"a visual warning signal"
"a device for lighting or igniting fuel or charges or fires"
"make lighter or brighter"
"begin to smoke"
"to come to rest, settle"
"cause to start burning; subject to fire or great heat"
"fall to somebody by assignment or lot"
"start or maintain a fire in"
"of comparatively little physical weight or density"
"not great in degree or quantity or number"
"psychologically light; especially free from sadness or troubles"
"characterized by or emitting light"
"easily assimilated in the alimentary canal; not rich or heavily seasoned"
"moving easily and quickly; nimble"
"demanding little effort; not burdensome"
"of little intensity or power or force"
"weak and likely to lose consciousness"
"very thin and insubstantial"
"marked by temperance in indulgence"
"less than the correct or legal or full amount often deliberately so"
"having little importance"
"intended primarily as entertainment; not serious or profound"
"silly or trivial"
"designed for ease of movement or to carry little weight"