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trace element

posp. substância mineral em quantidades mínimas da dieta alimentar
ekon. oligoelemento
ochr.środ. microelementos
opiek., przem., chem. elemento vegetal; microelemento
roln. micronutriente
trace elements ['treɪs'elɪmənts]
ochr.środ. 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
ochr.środ. microelementos