radiobutton
nounUK /ˈreɪdiəʊ bʌtn/
US /ˈreɪdioʊ bʌtn/
A small circle on a screen that you click to pick one choice.
Click the radio button next to your favorite color.
OTHER MEANINGS
2. A control in a graphical user interface that lets a user select exactly one option from a group.
The survey uses radio buttons so you can only choose one answer.
3. A button on a radio or similar device that selects a preset station or function.
Press the radio button to switch to the next station.
4. In web forms, an input element of type 'radio' that groups mutually exclusive choices.
Each radio button in the group shares the same name attribute.