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单词 trace element
释义

trace element

​noun countable
UK
Word Forms
singulartrace element
pluraltrace elements
DEFINITIONS2
  1. 1
    ​biologya 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
    aluminium
  2. 2
    ​chemistrya chemical element that is found in extremely small amounts in a mineral
    Synonyms and related words
    Chemical elements
    actinium
    alkali metal
    aluminium

trace element

​noun countable
US
Word Forms
singulartrace element
pluraltrace elements
DEFINITIONS2
  1. 1
    ​biologya 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
    aluminum
  2. 2
    ​chemistrya chemical element that is found in extremely small amounts in a mineral
    Synonyms and related words
    Chemical elements
    actinium
    alkali metal
    aluminum
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更新时间：2026/2/23 2:58:52