Definition of trace element noun from the Oxford Advanced Learner's Dictionary


    trace element

    BrE BrE//ˈtreɪs elɪmənt//
    ; NAmE NAmE//ˈtreɪs elɪmənt//
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  1. 1a chemical substance that is found in very small amounts
  2. 2a chemical substance that living things, especially plants, need only in very small amounts to be able to grow well
See the Oxford Advanced American Dictionary entry: trace element