nutrient

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nutrient

1. any of the mineral substances that are absorbed by the roots of plants for nourishment
2. any substance that nourishes an organism
3. providing or contributing to nourishment
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

nutrient

[′nü·trē·ənt]
(biology)
Providing nourishment.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.