1. automatic responses of the body to stimuli, occurring without conscious thought
Usage: plural of reflex; biology/medicine
2. quick reactions or responses to situations
Usage: informal

Examples

• The doctor tested her reflexes by tapping her knee with a small hammer.
• Good reflexes are essential for driving safely.
• The goalkeeper’s quick reflexes saved the team from losing.
• As we age, our reflexes tend to slow down.
• The loud noise triggered his startle reflexes.
• Professional athletes train to improve their reflexes.
• Her reflexes kicked in when she saw the ball coming toward her face.