| 单词 | trace element |
| 释义 | trace elementSEE SYNONYMS FOR trace element ON THESAURUS.COM noun Biochemistry.any element that is required in minute quantities for physiological functioning. Also called trace mineral. Origin of trace elementFirst recorded in 1935–40 Words nearby trace elementtrabs, Trabzon, tracasserie, trace, traceable, trace element, trace fossil, traceless, tracer, tracer bullet, traceried Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for trace elementtrace element nounany 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 Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for trace elementtrace element [ trās ] n.A chemical element required in minute quantities by an organism to maintain proper physical functioning. A minute quantity or amount, as of a chemical compound. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for trace elementtrace element [ trās ] An element present in an organism in only very small amounts but essential for normal metabolism. Iodine and cobalt are trace elements required by humans. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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