a small electric device that makes a short buzzing sound to get someone’s attention, like a doorbell or an alarm
When the visitor pressed the buzzer, the receptionist opened the door.
The school uses a loud buzzer to signal the end of each class period.
✦ From buzz + -er, first recorded in the late 1800s for electrical signalling devices.
in sports, the loud electronic signal that marks the end of a period or the game
The ball left his hand just as the buzzer sounded.
Fans jumped to their feet when the final buzzer ended the game.
✦ Sense extended from the general device to the specific arena horn that buzzes to end play.
