Definition of "pneumatic"

Of, relating to, or resembling air or other gases  examples

Of or relating to pneumatics  examples

Powered by, or filled with, compressed air  examples

(zoology) Having cavities filled with air

Spiritual; of or relating to the pneuma  examples

(of a woman) well-rounded; full-breasted; bouncy  quotations  examples

(dated) A vehicle, such as a bicycle, whose wheels are fitted with pneumatic tyres.  examples

(Gnosticism) In the gnostic theologian Valentinus' triadic grouping of man, the highest type; a person focused on spiritual reality (the other two being hylic and psychic).  examples