- any of various chemical elements, such as iron, manganese, zinc, copper, and iodine, that occur in very small amounts in organisms and are essential for many physiological and biochemical processes
| 单词 | trace element |
| 释义 | WordReference Random House Learner's Dictionary of American English © 2024 ˈtrace ˌel•e•ment, n. [countable] WordReference Random House Unabridged Dictionary of American English © 2024
trace′ el′ement, [Biochem.]
Collins Concise English Dictionary © HarperCollins Publishers:: trace element n
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