Definition of scotopic
: relating to or being vision in dim light with dark-adapted eyes which involves only the retinal rods as light receptors
Origin and Etymology of scotopic
New Latin scotopia scotopic vision, from Greek skotos darkness + New Latin -opia
First Known Use: 1915
Seen and Heard
What made you want to look up scotopic? Please tell us where you read or heard it (including the quote, if possible).