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pupillary reflex

noun

: the contraction of the pupil in response to light entering the eye

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pupillary
pupillary reflex
pupillodilator
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Cite this Entry

“Pupillary reflex.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/pupillary%20reflex. Accessed 28 Nov. 2025.

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