betatron, biocatalyst, collider, cyclotron, enzyme, linac.
accumulator, activator, actuator, actuator, administrator, agitator, alligator, allocator, alternator, animator, applicator, appropriator, arbitrator, aviator, calculator, carburetor, collaborator, commentator, communicator, conciliator.
noun: a sporting competition in which contestants play a series of games to decide the winner.
Unscramble tournaments