Search Result for "dieter": 
Wordnet 3.0

NOUN (1)

1. a person who diets; 



The Collaborative International Dictionary of English v.0.48:

Dieter \Di"et*er\, n.
   One who diets; one who prescribes, or who partakes of, food,
   according to hygienic rules. Dietetic


WordNet (r) 3.0 (2006):

dieter
    n 1: a person who diets