semilunar hiatus


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sem·i·lu·nar hi·a·tus

[TA]
a deep, narrow 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.

sem·i·lu·nar hi·a·tus

(sem'ē-lū'năr hī-ā'tŭs) [TA]
A deep, narrow 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.

sem·i·lu·nar hi·a·tus

(sem'ē-lū'năr hī-ā'tŭs) [TA]
Deep, narrow groove in lateral wall of middle meatus of nasal cavity, into which maxillary sinus, frontonasal duct, and middle ethmoid cells open.