n. 行使职权者, 锻炼者, 肌肉锻练器具

[计] 试验器; 操作器

[ noun ]
sports equipment used in gymnastic exercises
<noun.artifact>

exerciser \ex"er*ci`ser\, n.
1. One who exercises.

2. one who supervises the exercise of animals, such as horses
or dogs.
[PJC]

3. a device used for exercising muscles; as, a thigh
exerciser.
[PJC]