schmutzdecke n. a naturally occurring gelatinous layer of living biological matter on a sand-based water filter, for which it provides additional filtration. Editorial Note: Occasionally spelled in English as “schmutzedecke” or...
schmutzdecke n.— «This system, introduced into the U.S. in 1872, uses low water flow rates (0.05 gpm/sq ft) and relies on the formation of a “schmutzdecke” (a fine, mud-like layer) in the top surface of the fine sand (specific...
schmutzdecke n.— «Periodically the top layer of sand (approximately 25 to 100m deep) needs to be removed from the slow sand filters together with the associated biological accumulation (“schmutzdecke”) for cleaning...
verrine n.— «A verrine is an appetizer or dessert that consists of a number of components layered artfully in a small glass. (The word verrine refers to the glass itself; literally it means “protective glass.”) Intriguingly...
bio-ink n.— «For years, tissue engineers have used souped-up printers, and in some cases off-the-shelf models, to print “bio-inks.” These inks consist of anything from proteins to individual cells printed in microscopic...
creamy layer n.— «Though the benefits have never been so freely accessible to all “SCs” as some in India often imagine, neither are they so confined to “a creamy layer” already risen to the top from amongst the...