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Meaning of undernutrition

un•der•nu•tri•tion

Pronunciation: (un"dur-n-trish'un, -ny-), [key]
— n.
  1. nutritional deficiency resulting from lack of food or from the inability of the body to convert or absorb it.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.