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pneumatic +‎ -ity


pneumaticity (usually uncountable, plural pneumaticities)

  1. (biology) The state of being pneumatic, or of having a cavity or cavities filled with air.
    the pneumaticity of the bones of birds

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for pneumaticity in
Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)