radio button

A small circle a user can click on to interact with material on a Web page. You usually see it on a form, next to each item in a list of options. Once you click on a radio button, a dark circle appears inside it, indicating that you have selected it. Radio buttons usually only allow you to select one item in a list (as opposed to more than one).

See also : checkbox  deselect  
NetLingo Classification: Technical Terms