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trace element
noun [C]
singulartrace element
pluraltrace elements
  1. 1
    biology a chemical element that a living thing needs in only extremely small amounts in order to grow and develop normally, for example iron or zinc
     Synonyms and related words
    Chemical elements:actinium, alkali metal, americium...
  2. 2
    chemistry a chemical element that is found in extremely small amounts in a mineral
     Synonyms and related words
    Chemical elements:actinium, alkali metal, americium...

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