0 a button on an alarm clock (= a clock for waking you up) that you press after it has woken you up, so that you can sleep for a few minutes more before being woken up again by the clock
We can either be alive to that call or hit the snooze button and slumber on.
I liken our recent experience of public participation to that of an alarm clock; people tend to keep pressing the snooze button until they finally get the wake-up call.
She also loves to sleep, hates to be waken up, and considers mankind's greatest invention to be the snooze button on her alarm clock.