The term 'Bench Press Muscles' refers to the muscles used when performing a bench press exercise. The primary muscle group used in this exercise is the triceps, which is a seven-letter word. The triceps are a three-headed muscle located at the back of the upper arm and are responsible for extending the elbow joint. When performing a bench press, the triceps are used to push the weight away from the body. Strengthening the triceps can help improve overall upper body strength and stability.