/ Dictionary / Index N nutrition: Meaning and Definition of Find definitions for: nu•tri•tion Pronunciation: (n-trish'un, ny-), [key] — n. the act or process of nourishing or of being nourished. the science or study of, or a course of study in, nutrition, esp. of humans. the process by which organisms take in and utilize food material. food; nutriment. the pursuit of this science as an occupation or profession. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nutrition (Thesaurus) nutriment nutritionist Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language