The term 'hair-styling device' can be summarized as a CURLER, which is a six-letter word. A CURLER is a device used to create curls or waves in the hair. It is usually made of metal or plastic and has a handle with a clamp at one end. The clamp is used to hold the hair in place while the user wraps the hair around the barrel of the CURLER. Curlers come in various sizes and shapes, allowing for different types of curls. They are often heated to help set the curl and can be used on both wet and dry hair.