 pupillary_reflex |
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| 1. | [ noun ] (biology,medicine) reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller | |
| Synonyms: | miosis myosis light_reflex | |
| Related terms: | reflex | |
| Similar spelling: |
pupillary_sphincter papillary_muscle |
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