I. n(y)üˈmad.ik, -atik, -ēk sometimes nəˈm- adjective
Etymology: Latin pneumaticus, from Greek pneumatikos, from pneumat-, pneuma wind, air, breath, spirit (from pnein to breathe) + -ikos -ic; akin to Old English fnēosan to sneeze — more at sneeze
1.
a. : of, relating to, or using air, wind, or other gas:
(1) : moved or worked by air pressure either by a percussive action or by a rotary action
pneumatic chisel
pneumatic drill
(2) : adapted for holding compressed air : inflated with air
pneumatic tire
b. : of or relating to pneumatics
2. : of or relating to the pneuma ; especially : spiritual
3. : marked by or having cavities filled with air
pneumatic system of the pelican — E.A.Armstrong
4. : having a well proportioned feminine figure ; especially : having a full bust
II. noun
( -s )
1. : a spiritual being ; specifically : one held by the Gnostics as belonging to the highest of the three classes into which mankind is divided
2. : a pneumatic tire