keybutton
keybutton
(ˈkiːˌbʌtən)n
an object on a keyboard which, when pressed, causes the letter, number, or symbol shown on it to be printed in a document
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014