hiatus semilunaris

hiatus semilunaris definition - medical

hiatus sem·i·lu·nar·is (sĕmˌē-lo͞o-nârˈĭs)

noun
A groove in the lateral wall of the middle meatus of the nasal cavity, into which the maxillary sinus, the frontonasal duct, and the middle ethmoid cells open.

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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