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Search Result for "air pump":
Wordnet 3.0

NOUN (1)

1. a pump that moves air in or out of something;
[syn: air pump, vacuum pump]


The Collaborative International Dictionary of English v.0.48:

Air pump \Air" pump`\ 1. (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. [1913 Webster] 2. (Steam Engines) A pump used to exhaust from a condenser the condensed steam, the water used for condensing, and any commingled air. [1913 Webster]
WordNet (r) 3.0 (2006):

air pump n 1: a pump that moves air in or out of something [syn: air pump, vacuum pump]