noun. a warning device consisting of a horn that generates a loud low tone.
noun. a loud low warning signal that can be heard by fogbound ships.
- warning signal
Example sentences of the word foghorn
1. Noun, singular or mass
The ship has two sound elements: the ship's general alarm bell, which makes a ringing sound, and the ships whistle, which is literally a foghorn.
Other noises to indicate this problem are a foghorn sound, wailing, humming or oboe-type sounds.