multibutton

adjective

mul·​ti·​but·​ton ˌməl-tē-ˈbə-tᵊn 

-ˌtī-

: having or using two or more buttons

For most of the [computer] games I play, a keyboard and a good multibutton mouse are all I need.

—Peter Cohen

Word History

First Known Use

1883, in the meaning defined above