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 

: of, relating to, being, or suitable for scotopic vision

rods functioning under scotopic conditions

scotopic sensitivity