'Eater' definitions:

Definition of 'eater'

From: WordNet
noun
Someone who consumes food for nourishment [syn: eater, feeder]
noun
Any green goods that are good to eat; "these apples are good eaters"

Definition of 'Eater'

From: GCIDE
  • Eater \Eat"er\ ([=e]t"[~e]r), n. One who, or that which, eats. [1913 Webster]