An elliptical trainer.

plural of cross-trainer

(archaic) Third-person singular simple present indicative form of train

(archaic) second-person singular simple present form of train

A short low sock that does not reach the ankle.

plural of trainer liner

plural of elliptical trainer

An exercise machine in which the feet of the user travel an elliptic path; used to simulate stair climbing, walking, or running without causing excessive pressure to the joints.

plural of turbo trainer

(cycling) A trainer equipped with a fan to simulate pedal resistance and airflow.