1) Alarm 2) Claxon 3) Horn 1) Antique car horn 2) Art magazine 3) Brand of siren 4) Claxon 5) Early car horn 6) Electric warning signal 7) Electrically operated horn 8) Emergency horn 9) Horn 10) Loud auto honker of yore 11) Loud electric horn 12) Loud warning signal 13) Old car horn 14) Warning horn 15) Warning signal 
loud mechanical horn
Monthly review of Modern Brazilian art first published in 1922 – the same year as the Modern Art Week in São Paolo – and emphasized an international, industrialized context for art. It asserts: "We need to reflect. We need to clarify. We need to construct. That is the reason for Klaxon. Klaxon will never complain that it is not understo...
[n] - a kind of loud horn formerly used on motor vehicles
claxon noun a kind of loud horn formerly used on motor vehicles
a loud electric horn, formerly used on automobiles, trucks, etc., and now often used as a warning signal.