pupil

pupil definition - medical

pu·pil (pyo͞oˈpəl)

noun
The apparently black circular opening in the center of the iris of the eye, through which light passes to the retina.

Related Forms:

  • puˈpi·lar adjective

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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