Definition of "hailer" []

• One that greets, acclaims, or catches someone's attention. (noun)
• A bullhorn. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Now I think it would take a heart of stone not to laugh at Gordon Brown ` s belated conversion to the union which we can see from the direction of the BBC ` s loud hailer is actually only designed to dissipate English nationalism."
• "It had taken more than two hours of loud hailer persuasion, but the door was easing open."
• "It can stand sentry at a checkpoint, and warn people away with a police-style hailer, a non-blinding laser, tear gas or smoke grenades."