opacity
photo-
light unit
actinometry
electronic smog
spectroradiometry
homochromatic
monochromatic
emission spectrum
upscattering
electromagnetic wave
coefficient of absorption
absorptance
absorption coefficient
Compton effect
aeriform
polychromatic
Compton scattering
total darkness
fluorescence
blackness
black
pitch blackness
lightlessness
absorption spectrum
infrared radiation
infrared emission
infrared light
infrared
radiately
extinction
infrared spectrum
luminesce
radiodosimetry
electromagnetic spectrum
photometry
sick
wan
photoinduced
pale
pallid
photodepolarization
bandshape
monowavelength
opaque
ultraviolet
electrohypersensitivity
photoinitiated
photoelectroactivity
absorption