pneumaticity

/ˌnjuːməˈtɪsɪti/
noun
  1. The quality or state of being filled with air or gas, especially in a biological or mechanical context.
    • Engineers studied the pneumaticity of the tire to improve its shock absorption.
    • The pneumaticity of bird bones helps them fly more easily.
    • The fossil showed signs of pneumaticity, suggesting the dinosaur had air sacs.
Synonyms
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