Search Result for "buzzer": 
Wordnet 3.0

NOUN (2)

1. a push button at an outer door that gives a ringing or buzzing signal when pushed;
[syn: doorbell, bell, buzzer]

2. a signaling device that makes a buzzing sound; 



The Collaborative International Dictionary of English v.0.48:

Buzzer \Buzz"er\ (b[u^]z"[~e]r), n.
   One who, or that which, buzzes; a whisperer; a talebearer.
   [1913 Webster]

         And wants not buzzers to infect his ear
         With pestilent speeches of his father's death. --Shak.
   [1913 Webster]


WordNet (r) 3.0 (2006):

buzzer
    n 1: a push button at an outer door that gives a ringing or
         buzzing signal when pushed [syn: doorbell, bell,
         buzzer]
    2: a signaling device that makes a buzzing sound