Pneumaticity

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Pneumaticity \Pneu`ma*tic"i*ty\, n. (Biol.)
     The state of being pneumatic, or of having a cavity or
     cavities filled with air; as, the pneumaticity of the bones
     of birds.
     [1913 Webster]