noun
: a pump consisting of a sprocket-operated endless chain fitted at close intervals with disks that lift the water by moving rapidly through a pipe in the direction of the desired flow
noun
: a pump consisting of a sprocket-operated endless chain fitted at close intervals with disks that lift the water by moving rapidly through a pipe in the direction of the desired flow
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012