'Beater' definitions:

Definition of 'beater'

From: WordNet
noun
A worker who rouses wild game from under cover for a hunter
noun
An implement for beating

Definition of 'Beater'

From: GCIDE
  • Beater \Beat"er\ (b[=e]t"[~e]r), n.
  • 1. One who, or that which, beats. [1913 Webster]
  • 2. A person who beats up game for the hunters. --Black. [1913 Webster]

Synonyms of 'beater'

From: Moby Thesaurus