Definition of "wristband"

The cuff of a sleeve that wraps around the wrist.  examples

A strip of material worn around the wrist, e.g. to absorb perspiration, especially in sports.  examples

A decorative band or bracelet that encircles the wearer's wrist.  examples

A band that supports a wristwatch.  examples

A cord worn around the wrist, used to hold a small object such as a knife: a lanyard  examples