maxillary sinus

/ˌmæksəˈlɛri ˌsaɪnəs/
IPA guide

Other forms: maxillary sinuses

Definitions of maxillary sinus
  1. noun
    one of a pair of sinuses forming a cavity in the maxilla
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    type of:
    sinus
    any of various air-filled cavities especially in the bones of the skull
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