Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A pump for drawing up a liquid by means of suction produced by a piston drawn through a cylinder.

from the GNU version of the Collaborative International Dictionary of English

  • n. the common pump, in which the water is raised into the barrel by atmospheric pressure. See Illust. of Pump.

from The Century Dictionary and Cyclopedia

  • n. A pump having a barrel placed above the level of the water to be drawn, a suction-pipe extending from the barrel down into the water to be raised, an inlet-valve opening inward or toward the piston, and an outlet-valve in the piston.
  • n. As a piece of chemical apparatus, same as filter-pump.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a pump for raising fluids by suction

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