mesopic

adjective
me·so·pic | \ me-ˈzäp-ik , mē-ˈsōp- \

Medical Definition of mesopic 

1 : having a face on which the root of the nose and central line of the face project moderately

2 : of or relating to vision under conditions of intermediate levels of illumination mesopic vision tests made in a cloudy moonlight illuminationScience News Letter

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