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[dahy-i-ter-ee] /ˈdaɪ ɪˌtɛr i/
of or relating to diet:
a dietary cure.
noun, plural dietaries.
a regulated allowance of food.
Obsolete. a system or course of diet.
Origin of dietary
late Middle English
1400-50; late Middle English dietarie system of diet. See diet1, -ary
Related forms
dietarily, adverb
predietary, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for dietary
Contemporary Examples
Historical Examples
  • Circulatory Changes likewise occur as the heart becomes affected, making it necessary to institute some dietary measures at once.

    Dietetics for Nurses Fairfax T. Proudfit
  • This was the question that interested them far more than the dietary of the Bedouins.

    The Boy Slaves Mayne Reid
  • Yet, after all the studies of the past decade, the old belief that pellagra is essentially of dietary origin is gaining ground.

    Handbook of Medical Entomology William Albert Riley
  • What is the necessity of fruits and vegetables in our dietary?

    A Handbook of Health Woods Hutchinson
  • It would make even six months' life as jocular as Bradshaw's Railway Guide or the dietary of a prison.

    Simon the Jester William J. Locke
British Dictionary definitions for dietary


/ˈdaɪətərɪ; -trɪ/
of or relating to a diet
noun (pl) -taries
a regulated diet
a system of dieting
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 dietary

1610s, from Medieval Latin dietarius, from Latin diaetarius, from diaeta (see diet (n.1)).

Online Etymology Dictionary, © 2010 Douglas Harper
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dietary in Medicine

dietary di·e·tar·y (dī'ĭ-těr'ē)
Of or relating to diet.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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