Search Result for "amplifier": 
Wordnet 3.0

NOUN (1)

1. electronic equipment that increases strength of signals passing through it; 



The Collaborative International Dictionary of English v.0.48:

Amplifier \Am"pli*fi`er\, n.
   One who or that which amplifies.
   [1913 Webster]


WordNet (r) 3.0 (2006):

amplifier
    n 1: electronic equipment that increases strength of signals
         passing through it