pumps

n a mechanical device that moves fluid or gas by pressure or suction n the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body n a low-cut shoe without fastenings v operate like a pump; move up and down, like a handle or a pedal v deliver forth v draw or pour with a pump v supply in great quantities v flow intermittently v move up and down v raise (gases or fluids) with a pump v question persistently