Radio buttons are a type of user interface element that allow users to select one option from a set of options. They are commonly used in forms and surveys, and are often represented by a small circle or square that can be clicked on or off. The term 'radio button' comes from the physical buttons found on radios, which allowed users to select a station. The crossword solutions for the term radio button are PRESET (6 letters), SEEK (4 letters), and AMFM (4 letters). PRESET refers to the ability to save a certain setting or selection, such as a radio station, so that it can be quickly accessed in the future. SEEK is a feature that allows users to search for a specific radio station or frequency. AMFM refers to the two types of radio waves used for broadcasting, Amplitude Modulation (AM) and Frequency Modulation (FM).