dieter

di·et ¹  (dt)

n.

1. The usual food and drink of a person or animal.

2. A regulated selection of foods, as for medical reasons or cosmetic weight loss.

3. Something used, enjoyed, or provided regularly: subsisted on a diet of detective novels during his vacation.

adj.

1. Of or relating to a food regimen designed to promote weight loss in a person or an animal: the diet industry.

2.

a. Having fewer calories.

b. Sweetened with a noncaloric sugar substitute.

3. Designed to reduce or suppress the appetite: diet pills; diet drugs.

v. di·et·ed, di·et·ing, di·ets

v.intr.

To eat and drink according to a regulated system, especially so as to lose weight or control a medical condition.

v.tr.

To regulate or prescribe food and drink for.

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[Middle English diete, from Old French, from Latin diaeta, way of living, diet, from Greek diaita, back-formation from diaitsthai, to live one's life, middle voice of diaitn, to treat.]

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diet·er n.

Thesaurus

Noun

1.

dieter - a person who diets individual, mortal, person, somebody, someone, soul - a human being; "there was too much for one person to do"

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dieter

noun slimmer, weight watcher, calorie counter, faster, reducer