air pump
noun
Definition of air pump
: a pump for exhausting air from a closed space or for compressing air or forcing it through other apparatus
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First Known Use of air pump
1653
AIR PUMP Defined for English Language Learners
air pump
noun
Definition of air pump for English Language Learners
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: a pump used for removing air from or adding air to something (such as a tire)
Learn More about air pump
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See words that rhyme with air pump Britannica.com: Encyclopedia article about air pump
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