Noun: foghorn 'fóg,horn
- A warning device consisting of a horn that generates a loud low tone
"The foghorn's deep bellow warned ships of the rocky coastline"
- A loud low warning signal that can be heard by fogbound ships
"The foghorn blared through the thick mist, guiding ships away from the rocky shore";
- fogsignal
Derived forms: foghorns
Type of: alarm, alarum [archaic], alert, horn, signaling device, warning signal
Encyclopedia: Foghorn