pneumatic(redirected from pneumaticity)
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1. of or concerned with air, gases, or wind
2. (of a machine or device) operated by compressed air or by a vacuum
3. containing compressed air
a. of or relating to the soul or spirit
b. of or relating to the Holy Ghost or other spiritual beings
5. (of the bones of birds) containing air spaces which reduce their weight as an adaptation to flying
Pertaining to or operated by air or other gas.