Meaning of DARK ADAPTATION in English

DARK ADAPTATION

— dark-adapted , adj.

Ophthalm.

the reflex adaptation of the eye to dim light, consisting of a dilatation of the pupil and an increase in the number of functioning rods accompanied by a decrease in the number of functioning cones (opposed to light adaptation ).

[ 1905-10 ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .