What is Battler?

Battler definition and meaning on Dictionary terms:
a hostile encounter or engagement between opposing military forces: the battle of Waterloo.
participation in such hostile encounters or engagements: wounds received in battle.

a fight between two persons or animals: ordering a trial by battle to settle the dispute.
any conflict or struggle: a battle for control of the Senate.
Archaic. a battalion.

verb (used without object), bat