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| micro elements; minor elements; trace elements | |||
| trace element Any of various chemical elements that occur in very small amounts in organisms and are essential for many physiological and biochemical processes; trace element | |||
| micro element; micromineral; oligo-element; trace mineral | |||
| accompanying element | |||
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| oligoelement | |||
| micro element; micro-element; micronutrient; minor element | |||
| micro-nutrient; trace nutrient; minor nutrient | |||
| trace element | |||
| oligo-element; microelement | |||
| oligoelementos: 16 phrases in 5 subjects |
| Environment | 4 |
| General | 1 |
| Name of organization | 9 |
| Patents | 1 |
| United Nations | 1 |