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单词 pneumatization
释义 pneumatization Med.|ˌnjuːmətaɪˈzeɪʃən|
[f. next + -ation.]
The development or presence of air-filled cavities in bone or other tissue.
1934Lake & Marshall Surg. Anat. & Physiol. xv. 244 Pneumatisation of mastoid process varies between extreme limits.1959G. E. Shambaugh Surg. of Ear i. 22 It is not until air enters the middle ear at birth..that pneumatization accelerates, continuing throughout infancy and early childhood.1976Nature 19 Aug. 683/2 Another unusual feature in a dinosaur is the very strong pneumatisation of the skull bones, especially those of the roof and snout.
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