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词汇 mastoid antrum
释义

Definition of mastoid antrum in English:

mastoid antrum

noun
  • (In the human skull) a cavity within the petrous portion of the temporal bone, communicating with the air cells of the mastoid process and with the middle ear.

Origin

Late 19th century; earliest use found in Daniel Roosa (b. 1838). After scientific Latin antrum mastoideum; compare French antre mastoïdien.

Definition of mastoid antrum in US English:

mastoid antrum

noun
  • (In the human skull) a cavity within the petrous portion of the temporal bone, communicating with the air cells of the mastoid process and with the middle ear.

Origin

Late 19th century; earliest use found in Daniel Roosa (b. 1838). After scientific Latin antrum mastoideum; compare French antre mastoïdien.

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