pneumatization

pneumatization
The development of air cells such as those of the mastoid and ethmoidal bones. [G. pneuma, air]

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pneu·ma·ti·za·tion also Brit pneu·ma·ti·sa·tion .n(y)ü-mət-ə-'zā-shən n the presence or development of air-filled cavities in a bone <\pneumatization of the temporal bone>

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n.
the presence of air-filled cavities in bone, such as the sinuses of the skull.

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pneu·ma·ti·za·tion (noo″mə-tĭ-zaґshən) the formation of pneumatic cells or cavities in tissue, especially such formation in the temporal bone.

Medical dictionary. 2011.

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