D defs.my
Entry 2 senses Webster, 1913

handler

· IPA /ˈhænd.lə/
01 n. one who trains or exhibits animals.
  1. 1.
    one who trains or exhibits animals.
  2. 2.
    someone in charge of training an athlete (especially a boxer) or a team.
Syn. animal trainer. — Syn. -- coach, manager.