bullhorn
bull·horn
noun
1.
a portable loudspeaker with built-in microphone and amplifier
Origin
From bull + horn, attested since the 1950s.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.