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trace element

génér. substância mineral em quantidades mínimas da dieta alimentar
agric. micronutriente
envir. microelementos
soins., industr., chim. elemento vegetal; microelemento
écon. oligoelemento
trace elements ['treɪs'elɪmənts]
envir. 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
envir. microelementos

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