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skos:definition |
MSH: A group of chemical elements that are needed in minute quantities for the proper growth, development, and physiology of an organism. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed),CSP: chemical elements that are needed in minute quantities for the proper growth, development, and physiology of an organism.,NCI: A substance the body needs in tiny amounts to grow and stay healthy. Examples are vitamins and minerals.,NCI: Trace elements or dietary minerals are any of various chemical elements that occur in very small amounts in organisms and are essential for many physiological and biochemical processes. The term is also used to designate these elements and compounds containing them. (NCI)
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