Meaning – The term radio button, refers to a circle with text beside it. Radio buttons are combined to show a user a fixed set of choices from which the user can select one. The circle becomes partially filled when a choice is selected.
Radio buttons are often arranged in a group of at least two options. They take the form of a hollow circle that represents a “deselected” state and a circle with a dot inside for a selected state.
A user may choose only a single option or radio button among the set or group.
A radio button is an element usually found in forms and its main purpose is to allow the user to select a single option from a group of options.
Example of usage – “Unlike checkboxes where a user is allowed to select multiple boxes, a user may only choose a single option for a radio button which makes it ideal for options like gender and civil status since a person may only have one of those.”