scotopic
adjective
sco·to·pic skə-ˈtō-pik 
-ˈtä-
: relating to or being vision in dim light with dark-adapted eyes which involves only the retinal rods as light receptors
Word History
Etymology
New Latin scotopia scotopic vision, from Greek skotos darkness + New Latin -opia
First Known Use
1915, in the meaning defined above
Medical Definition
scotopic
adjective
sco·to·pic skə-ˈtō-pik -ˈtäp-ik
-ˈtäp-ik : of, relating to, being, or suitable for scotopic vision
rods functioning under scotopic conditions
scotopic sensitivity
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