from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A pump for compressing, removing, or forcing a flow of air.

from The Century Dictionary.

  • noun An apparatus for the exhaustion, compression, or transmission of air.

from the GNU version of the Collaborative International Dictionary of English.

  • (Physics) A kind of pump for exhausting air from a vessel or closed space; also, a pump to condense air or force it into a closed space.
  • (Steam Engines) A pump used to exhaust from a condenser the condensed steam, the water used for condensing, and any commingled air.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A pump that moves air either into, or out of, something.

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

  • noun a pump that moves air in or out of something


Sorry, no etymologies found.


    Sorry, no example sentences found.


Log in or sign up to get involved in the conversation. It's quick and easy.