filter bed

== English == === Pronunciation === (Received Pronunciation) IPA(key): /ˈfɪltə bɛd/ (General American) IPA(key): /ˈfɪltɚ ˌbɛd/ Hyphenation: filt‧er bed === Noun === filter bed (plural filter beds) A layer of gravel, sand, or other material through which liquid is passed in order to remove impurities; also, a pond or tank containing such a layer. ==== Translations ==== === Further reading === sand filter on Wikipedia.Wikipedia “filter bed, n.” under “filter, n.”, in OED Online ⁠, Oxford: Oxford University Press, September 2016. “filter bed, n.”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.