or clax·on

[ klak-suh n ]
/ ˈklæk sən /


a loud electric horn, formerly used on automobiles, trucks, etc., and now often used as a warning signal.

Origin of klaxon

An Americanism dating back to 1905–10; formerly trademark
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for klaxon

British Dictionary definitions for klaxon



/ (ˈklæksən) /


a type of loud horn formerly used on motor vehicles

Word Origin for klaxon

C20: former trademark, from the name of the manufacturing company
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for klaxon



"loud warning horn," 1908, originally on automobiles, said to have been named for the company that sold them (The Klaxon Company; distributor for Lovell-McConnell Mfg. Co., Newark, N.J.), but probably the company was named for the horn, which bore a word likely based on Greek klazein "to roar," cognate with Latin clangere "to resound."

Online Etymology Dictionary, © 2010 Douglas Harper