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trace element

gen. substância mineral em quantidades mínimas da dieta alimentar
agric. micronutriente
ambient. microelementos
cuid., industr., quím. elemento vegetal; microelemento
econ. oligoelemento
trace elements ['treɪs'elɪmənts]
ambient. 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
ambient. microelementos