bullhorn

from WordNet (r) 3.0 (2006)
bullhorn
    n 1: a portable loudspeaker with built-in microphone and
         amplifier [syn: {bullhorn}, {loud hailer}, {loud-hailer}]
from The Collaborative International Dictionary of English v.0.48
bullhorn \bullhorn\ n.
   a portable loudspeaker with built-in microphone and
   amplifier.

   Syn: loud-hailer.
        [WordNet 1.5]
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