noun
kettlebell
A cast-iron or steel weight shaped like a cannonball with a handle, used for ballistic and strength exercises.
ジムでケトルベルを使ったトレーニングを始めた。
I started training with a kettlebell at the gym.
ケトルベルスイングは全身運動に効果的だ。
Kettlebell swings are effective for a full-body workout.