pneumatic
pneumatic (n-mătʹĭk, ny-) also pneumatical (-ĭ-kəl) adjective
Abbr. pneum.
1. Of or relating to air or other gases.
2. Of or relating to pneumatics.
3. a. Run by or using compressed air: a pneumatic drill. b. Filled with air, especially compressed air: a pneumatic tire.
4. Zoology. Having cavities filled with air, as the bones of certain birds.
5. Theology. Of or relating to the pneuma; spiritual.
[French pneumatique, from Latin pneumaticus, from Greek pneumatikos, from pneuma, pneumat-, wind.]
pneumatʹically adverb
pneumaticʹity (nmə-tĭsʹĭ-tē, ny-) noun