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trace element

כלל. substância mineral em quantidades mínimas da dieta alimentar
.בריאו, .תעשיי, .כִּימ elemento vegetal; microelemento
.חַקלָ micronutriente
.כַּלְ oligoelemento
microelementos
trace elements ['treɪs'elɪmənts]
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
microelementos