单词	dark adaptation
释义	dark adaptation noun : the process including dilation of the pupil, increase in sensitivity of the retinal rods, and regeneration of rhodopsin by which the eye adapts to conditions of reduced illumination dark-adapted ˌdärk-ə-ˈdap-təd  adjective Example Sentences Recent Examples on the Web This dark adaptation of the novel, which differs from the original, has a sprawling ensemble led by Bradley Cooper, and there are high hopes for it. Clayton Davis, Variety, 21 Oct. 2021 So everyone wanted a dark adaptation of The Jungle Book, right? Jacob Kastrenakes, The Verge, 26 May 2018 Word History First Known Use 1897, in the meaning defined above Medical Definition dark adaptation noun ˌdärk-  : the phenomena including dilation of the pupil, increase in retinal sensitivity, shift of the region of maximum luminosity toward the blue, and regeneration of rhodopsin by which the eye adapts to conditions of reduced illumination compare light adaptation
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