Concept information
Terme préférentiel
trace element
Définition(s)
- A trace element is any of a number of elements required by living organisms, in small amounts, to ensure normal growth, development, and maintenance. They do not include the basic elements of organic compounds (carbon, hydrogen, oxygen, and nitrogen) or the other major elements present in quantities greater than about 0.005% (calcium, phosphorus, potassium, sodium, chlorine, sulfur, and magnesium). See essential element. (Encyclopedia of Science, by David Darling, https://en.wikipedia.org/wiki/Trace_element)
Concept(s) générique(s)
Traductions
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français
URI
http://data.loterre.fr/ark:/67375/MDL-JBC9QTH5-0
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