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Noun: pupillary reflex
  1. Reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
    - light reflex, miosis, myosis

Derived forms: pupillary reflexes

Type of: inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, reflex action, reflex response, unconditioned reflex

Encyclopedia: Pupillary reflex

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