photoneutral
lucifugally
holophotal
lucifugous
opaque
lucifugal
darkness
dark
subdued
dim
optophysiology
photoreleasable
photoentrainable
photodependent
lightproof
light-tight
darkly
photoreduction
in darkness
nonlight
lightlessly
photoinactivation
lightlessness
photounbinding
dry light
blackness
pitch blackness
total darkness
black
photoliberation
sunproof
optical opacity
interreflection
semitransparency
translucence
translucency
leuconephelinite
photoaversion
photoprevention
photoavoidance
semidark
photomotile
antiultraviolet
aphotic
from can see to can't see
underexpose
transparently
photonastic
nonphotonic
overglow