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… …   The Collaborative International Dictionary of English

air-pump — airˈ pump noun An instrument for pumping air out or in • • • Main Entry: ↑air …   Useful english dictionary

air pump — n a piece of equipment used to put air into something …   Dictionary of contemporary English

air pump — air ,pump noun count a piece of equipment used for putting air into something such as a tire or a ball …   Usage of the words and phrases in modern English

air pump — air′ pump n. mac an apparatus for drawing in, compressing, or exhausting air • Etymology: 1650–60 …   From formal English to slang

air pump — n. a machine for removing or compressing air or for forcing it through something …   English World dictionary

air pump — noun a pump that moves air in or out of something • Syn: ↑vacuum pump • Hypernyms: ↑pump • Hyponyms: ↑condensation pump, ↑diffusion pump, ↑inflater, ↑inflator, ↑ …   Useful english dictionary

air pump — UK / US noun [countable] Word forms air pump : singular air pump plural air pumps a piece of equipment used for putting air into something such as a tyre or a ball …   English dictionary

air pump — oro siurblys statusas T sritis fizika atitikmenys: angl. air pump vok. Luftpumpe, f rus. воздушный насос, m pranc. aéropompe, f; pompe à air, f; pompe pneumatique, f …   Fizikos terminų žodynas

air pump — noun Date: 1653 a pump for exhausting air from a closed space or for compressing air or forcing it through other apparatus …   New Collegiate Dictionary

air pump — a pump which supplies air for airstones, lift tubes, under gravel filters, skimmers, bubblers, ornamental items and other devices in an aquarium. The air bubbles serve to draw water through an under gravel filter for example. The most common type …   Dictionary of ichthyology