opaque
loosefill
translucency
lucifugal
photoresistance
gossamer-thin
lucifugous
optical opacity
dark ground illumination
opacity
photochromism
darkly
luminosity
brightness
luminiferous
phototheranostic
light
luminar
luminance
baryonic dark matter
holophotal
radiophotoluminescence
luminousness
brightness level
dark
in darkness
photocorrosion
Vitaglass
photophysics
lucid
photoefficiency
photoresponsive
metallophotonic
cathodochromism
transparently
light-tight
atomic absorption spectroscopy
photostabilizer
practical light
fluorescence
optical phenomenon
caustic
darkness
sparkling
translucent
overexpose
abacination