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[noo-trish-uh n, nyoo-] /nuˈtrɪʃ ən, nyu-/
the act or process of nourishing or of being nourished.
the science or study of, or a course of study in, nutrition, especially 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.
Origin of nutrition
late Middle English
1375-1425; late Middle English < Late Latin nūtrītiōn- (stem of nūtrītiō) a feeding, equivalent to Latin nūtrīt(us) (past participle of nūtrīre to feed, nourish) + -iōn- -ion
Related forms
nutritional, nutritionary, adjective
nutritionally, adverb
hypernutrition, noun
supernutrition, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for nutrition
Contemporary Examples
Historical Examples
  • These questions of nutrition are still so imperfectly studied and understood!

  • Water is the greatest element of nutrition in gardens, but is easily polluted.

    Laws Plato
  • The same laws which govern the nutrition of muscles, apply also to the vital organs.

    The Arena Various
  • The diet from now on will be considered in the chapter "Diet and nutrition."

    The Mother and Her Child William S. Sadler
  • Water fills an important place in the nutrition of the body.

    The Mother and Her Child William S. Sadler
British Dictionary definitions for nutrition


a process in animals and plants involving the intake of nutrient materials and their subsequent assimilation into the tissues related adjectives alimentary trophic
the act or process of nourishing
the study of nutrition, esp in humans
Derived Forms
nutritional, (rare) nutritionary, adjective
nutritionally, adverb
Word Origin
C16: from Late Latin nūtrītiō, from nūtrīre to nourish
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for nutrition

early 15c., from Old French nutrition (14c.) and directly from Latin nutritionem (nominative nutritio) "a nourishing," noun of action from past participle stem of nutrire "to nourish, suckle" (see nourish).

Online Etymology Dictionary, © 2010 Douglas Harper
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nutrition in Medicine

nutrition nu·tri·tion (nōō-trĭsh'ən, nyōō-)

  1. The process by which a living organism assimilates food and uses it for growth, liberation of energy, and replacement of tissues; its successive stages include digestion, absorption, assimilation, and excretion.

  2. The science or study that deals with food and nourishment, especially in humans.

nu·tri'tion·al adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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nutrition in Science
  1. The process by which living organisms obtain food and use it for growth, metabolism, and repair. The stages of nutrition include ingestion, digestion, absorption, transport, assimilation, and excretion.

  2. The scientific study of food and nourishment, including food composition, dietary guidelines, and the roles that various nutrients have in maintaining health.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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