trace element

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Related topics: Elements

ˈtrace ˌelement noun [countable] technical  1. a chemical element that your body needs a very small amount of to live 微量元素〔人体所需的微量化学物质〕2. a chemical element that only exists in small amounts on Earth 痕量 元素

ˈtrace ˌelement nounChineseSyllable  

trace element
ˈtrace ˌelement noun [countable] technical
1. a chemical element that your body needs a very small amount of to live
2. a chemical element that only exists in small amounts on Earth

trace elementBrE /ˈtreɪs elɪmənt/ 🔊NAmE /ˈtreɪs elɪmənt/ 🔊 nouna chemical substance that is found in very small amounts 痕量元素a chemical substance that living things, especially plants, need only in very small amounts to be able to grow well 微量元素（生物，尤指植物，生长所需要的微量的化学物质）