Medical Dictionary

choana cho·a·na (kō'ə-nə)
n. pl. cho·a·nae (-nē')
The opening into the nasopharynx of the nasal cavity on either side; posterior naris.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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