A bristle is a stiff hair or feather. Also used are synthetic materials such as nylon or straw in items such as brooms and sweepers. Bristles are often used to make brushes for cleaning uses, as they're strongly abrasive; common examples include the toothbrush and toilet brush. The Bristle Brush is a common household cleaning tool, often used to remove dirt or grease from pots and pans. Variations of bristle in the animal kingdom Bristles are found on pig breeds instead of fur on most mammals. B… (More on Bristle)