pinhole pupil

noun

Definition of pinhole pupil

: a pupil of the eye contracted (as in opium poisoning) to the size of a pinhole

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Learn More About pinhole pupil

Dictionary Entries Near pinhole pupil

pinhole camera

pinhole pupil

pinhook

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Cite this Entry

“Pinhole pupil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pinhole%20pupil. Accessed 21 Sep. 2021.

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