D defs.my
Entry 1 sense Webster, 1913

Dieter

/dēt'-ẽr/ · Di·et·er · IPA /dˈiːtər/
01 n. One who diets; one who prescribes, or who partakes of, food, according to hygienic rules.
  1. 1.
    One who diets; one who prescribes, or who partakes of, food, according to hygienic rules.