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trace element

заг. substância mineral em quantidades mínimas da dieta alimentar
довк. microelementos
ек. oligoelemento
ох.здор., харч., хім. elemento vegetal; microelemento
с/г. micronutriente
trace elements ['treɪs'elɪmənts]
довк. 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
довк. microelementos