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.

Short for cross-trainer.

plural of X-trainer

(aviation, historical) Any of a series of early electromechanical flight simulators

plural of penguin trainer

(UK, aviation, historical) A machine resembling an aeroplane but unable to fly, used for training pilots.

(archaic, rare) A female trainer.

plural of traineress