pneumatic leverage

[PNEUMATIC-ACTION.] pneumatic-organ, s. Music : The ordinary organ as opposed to the ancient hydraulic organ. [ORGAN.] pneumatic-pump, s. An air-exhaust or forcing pneumatic-railway, subst. [ATMOSPHERIC-RAIL pump. WAY.] pneumatic-syringe, s. Physics: A stout gla tube, closed at one end, and provided with a tight-fitting solid piston. It is designed to prove the compre ibility of gases.