1. a compound found naturally in muscle tissue that helps supply energy to muscles and is often taken as a dietary supplement by athletes
Usage: biochemistry; sports nutrition

Examples

• The athlete takes creatine supplements to improve his performance.
• Creatine is naturally produced by the human body.
• Many bodybuilders use creatine to increase muscle mass.
• The doctor explained how creatine works in muscle cells.
• Red meat and fish are natural sources of creatine.
• She decided to try creatine powder before her workouts.