- pneumatic:  Pneumatic denotes etymologically ‘of the wind or breath’. It comes via Latin pneumaticus from Greek pneumatikós, a derivative of pneuma ‘wind, breath’ (which is distantly related to English sneeze). Despite its similarity, pneumonia  does not come ultimately from the same source. It goes back to Greek pleúmōn ‘lung’, a relative of Latin pulmō (source of English pulmonary), which was altered to pneumōn under the influence of pneuma. From this was derived pneumoníā, acquired by English via Latin pneumonia.
=> pneumonia, pulmonary
- pneumatic (adj.)
- 1650s, from Latin pneumaticus "of the wind, belonging to the air," from Greek pneumatikos "of wind or air" (which is attested mainly as "of spirit, spiritual"), from pneuma (genitive pneumatos) "the wind," also "breath" (see pneuma). Earlier was pneumatical (c. 1600).
- 1. This pneumatic tool will double the speed of assembly.
- 2. Much of their study and revision was done to the thud of hammers and pneumatic drills.
- 3. Light kernels may be removed by a pneumatic or air seperator.
- 4. Experiments in pneumatic conveying show that there exists a maximum particle concentration.
- 5. We replaced hand picks with pneumatic picks and electric drills.
[ pneumatic 造句 ]