fog signal
noun
any of various types of signal used as a warning by vessels navigating in fog or mist.
Origin of fog signal
First recorded in 1750–60
Words nearby fog signal
fog forest,
fog gun,
fog lamp,
fog level,
fog light,
fog signal,
fogarty,
fogarty catheter,
fogbound,
fogbow,
fogdog
Example sentences from the Web for fog signal
For instance, let a fog-signal be placed at or near water level on one side of an island that has a conical elevation.
The Galaxy |VariousA “fog-signal” is employed on railways when the ordinary signals are obliterated within working distances.
British Dictionary definitions for fog signal
fog signal
noun
a signal used to warn railway engine drivers in fog, consisting of a detonator placed on the line