dark adaptation

Definitions of dark adaptation
1

n the process of adjusting the eyes to low levels of illumination; cones adapt first; rods continue to adapt for up to four hours

Type of:
adaptation
(physiology) the responsive adjustment of a sense organ (as the eye) to varying conditions (as of light)

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.