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trace element

общ. substância mineral em quantidades mínimas da dieta alimentar
здрав., пищ., хим. elemento vegetal; microelemento
окруж. microelementos
с/х. micronutriente
эк. oligoelemento
trace elements ['treɪs'elɪmənts]
окруж. oligoelementos
trace element Any of various chemical elements that occur in very small amounts in organisms and are essential for many physiological and biochemical processes
окруж. microelementos