nu·tri·tion (n-trĭshən, ny-)
1. The process of nourishing or being nourished, especially the process by which a living organism assimilates food and uses it for growth and for replacement of tissues.
2. The science or study that deals with food and nourishment, especially in humans.
3. A source of nourishment; food.
[Middle English nutricion, from Old French nutrition, from Late Latin nūtrītiō, nūtrītiōn-, from Latin nūtrītus, past participle of nūtrīre, to suckle; see (s)nāu- in the Appendix of Indo-European roots.]
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