暗あん順じゅん応のう

noun

dark adaptation

Physiological process by which the eyes adjust to low light conditions. Often contrasted with 明順応 (light adaptation).

See also: 明順応

• 暗あん順じゅん応のうには約やく30分ぷんかかると言いわれている。

  It is said that dark adaptation takes about 30 minutes.