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Definition of Maxillary sinus
1. Noun. One of a pair of sinuses forming a cavity in the maxilla.
Generic synonyms: Sinus
Medical Definition of Maxillary sinus
1. A air filled cavity within the maxilla (bone that forms the face and upper jaw). The maxillary sinus is located just below the bony prominence of the cheek (27 Sep 1997)
Lexicographical Neighbors of Maxillary Sinus
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