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View synonyms for dark adaptation

dark adaptation

noun

, Ophthalmology.
  1. 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 ( light adaptation ).


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Other Words From

  • dark-a·dapted adjective
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Word History and Origins

Origin of dark adaptation1

First recorded in 1905–10
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Example Sentences

To come now to the sense of sight, we have light adaptation, dark adaptation, and color adaptation.

Dark adaptation is equivalent to sensitizing the retina for faint light.

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darkDark Ages