radio button

美 
英 
  • n.单选按钮
  • 网络单选钮；单选框；选项按钮
复数：radio buttons  

权威英汉双解

英英

网络释义

radio button
n.
1.
单选按钮a small circle that you click on in order to make a particular choice. The radio button is then marked with a dot to show that it has been selected.