1

diet

noun di·et \ ˈdī-ət \

Definition of diet

1 a :food and drink regularly provided or consumed
  • a diet of fruits and vegetables
  • a vegetarian diet
b :habitual nourishment
  • links between diet and disease
c :the kind and amount of food prescribed for a person or animal for a special reason
  • was put on a low-sodium diet
d :a regimen of eating and drinking sparingly so as to reduce one's weight
  • going on a diet
2 :something provided or experienced repeatedly
  • Their imaginations feverish from a diet of detective novels …
  • The New Yorker
  • heard a steady diet of excuses

Did You Know?

The word diet first appeared in English in the 13th century. Its original meaning was the same as in modern English, “habitually taken food and drink.” But diet was used in another sense too in the Middle and early modern English periods to mean “way of living.” This is, in fact, the original meaning of diet’s Greek ancestor diaita, which is derived from the verb diaitasthan, meaning “to lead one’s life.” In Greek, diaita, had already come to be used more specifically for a way of living prescribed by a physician, a diet, or other regimen.

Origin and Etymology of diet

Middle English diete, from Anglo-French, from Latin diaeta, from Greek diaita, literally, manner of living, from diaitasthai to lead one's life


2

diet

verb

Definition of diet

transitive verb
1 :to cause to take food :feed
2 :to cause to eat and drink sparingly or according to prescribed rules
intransitive verb
:to eat sparingly or according to prescribed rules
  • has been dieting for two months

dieter

noun

Examples of diet in a Sentence

  1. I've been dieting for two months.

Origin and Etymology of diet

see 1diet


3

diet

adjective

Definition of diet

1 :reduced in or free from calories
  • a diet soft drink
2 :promoting weight loss (as by depressing appetite)
  • diet pills

Origin and Etymology of diet

see 1diet


4

diet

noun

Definition of diet

1 :a formal deliberative assembly of princes or estates
2 :any of various national or provincial legislatures

Origin and Etymology of diet

Middle English diete day's journey, day set for a meeting, from Medieval Latin dieta, literally, daily regimen, diet (taken as a derivative of Latin dies day), from Latin diaeta — see 1diet



DIET Defined for English Language Learners

diet

verb

Definition of diet for English Language Learners

  • : to eat less food or to eat only particular kinds of food in order to lose weight : to be on a diet


diet

adjective

Definition of diet for English Language Learners

  • : having a smaller number of calories than usual

  • : intended to help people lose weight


DIET Defined for Kids

1

diet

noun di·et \ ˈdī-ət \

Definition of diet for Students

1 :the food and drink that a person or animal usually takes
  • a balanced diet
2 :the kind and amount of food selected or allowed in certain circumstances (as poor health)
  • a low fat diet

2

diet

verb

Definition of diet for Students

dieted; dieting
:to eat less or according to certain rules in order to lose weight

dieter

noun

3

diet

adjective

Definition of diet for Students

:reduced in calories
  • a diet soft drink

Medical Dictionary

1

diet

noun di·et \ ˈdī-ət \

medical Definition of diet

1 :food and drink regularly provided or consumed
2 :habitual nourishment
3 :the kind and amount of food prescribed for a person or animal for a special reason
4 :a regimen of eating and drinking sparingly so as to reduce one's weight
  • going on a diet

2

diet

transitive verb

medical Definition of diet

1 :to cause to take food
2 :to cause to eat and drink sparingly or according to prescribed rules
intransitive verb
:to eat sparingly or according to prescribed rules

3

diet

adjective

medical Definition of diet

1 :reduced in calories or without calories
  • a diet soft drink
2 :promoting weight loss (as by depressing appetite)
  • diet pills


Seen and Heard

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