felt filter
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filter — [fil′tər] n. [ME filtre < OFr < ML filtrum, feltrum, felt, fulled wool (used for straining liquors) < Gmc: see FELT1] 1. a device for separating solid particles, impurities, etc. from a liquid or gas by passing it through a porous… … English World dictionary
Filter — Fil ter, n. [F. filtre, the same word as feutre felt, LL. filtrum, feltrum, felt, fulled wool, this being used for straining liquors. See {Feuter}.] Any porous substance, as cloth, paper, sand, or charcoal, through which water or other liquid may … The Collaborative International Dictionary of English
Filter bed — Filter Fil ter, n. [F. filtre, the same word as feutre felt, LL. filtrum, feltrum, felt, fulled wool, this being used for straining liquors. See {Feuter}.] Any porous substance, as cloth, paper, sand, or charcoal, through which water or other… … The Collaborative International Dictionary of English
Filter gallery — Filter Fil ter, n. [F. filtre, the same word as feutre felt, LL. filtrum, feltrum, felt, fulled wool, this being used for straining liquors. See {Feuter}.] Any porous substance, as cloth, paper, sand, or charcoal, through which water or other… … The Collaborative International Dictionary of English
Filter — (m., n., nach fr. filtrer, it. feltrare, „durchseihen“; ursprünglich „durch Filz laufen lassen“ zu germanisch *felt „Filz“) steht für: Geräte, Bauteile oder Baugruppen: Filter (Elektrotechnik), eine elektrische Schaltung, die bestimmte Frequenzen … Deutsch Wikipedia
filter — ► NOUN 1) a porous device for removing solid particles from a liquid or gas passed through it. 2) a screen, plate, or layer which absorbs some of the light passing through it. 3) Brit. an arrangement at a junction whereby vehicles may turn while… … English terms dictionary
felt — [1] ► NOUN ▪ cloth made by rolling and pressing wool or another suitable textile accompanied by the application of moisture or heat, which causes the fibres to mat together. ► VERB 1) mat together or become matted. 2) cover with felt. ORIGIN Old… … English terms dictionary
filter — I. noun Etymology: Middle English filtre, from Medieval Latin filtrum piece of felt used as a filter, of Germanic origin; akin to Old High German filz felt more at felt Date: 1563 1. a. a porous article or mass (as of paper or sand) through which … New Collegiate Dictionary
filter — fil•ter [[t]ˈfɪl tər[/t]] n. 1) chem. any substance, as cloth, paper, porous porcelain, or charcoal, through which liquid or gas is passed to remove suspended impurities or to recover solids 2) chem. any device, as a tank or tube, containing such … From formal English to slang
filter — [14] Ultimately, filter is the same word as felt – and indeed that is what it first meant in English (‘They dwell all in tents made of black filter’, John Mandeville, Travels 1400). It comes via Old French filtre from medieval Latin filtrum,… … The Hutchinson dictionary of word origins
filter — [14] Ultimately, filter is the same word as felt – and indeed that is what it first meant in English (‘They dwell all in tents made of black filter’, John Mandeville, Travels 1400). It comes via Old French filtre from medieval Latin filtrum,… … Word origins
