• synonyms

fog signal

  1. any of various types of signal used as a warning by vessels navigating in fog or mist.
Show More

Origin of fog signal

First recorded in 1750–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for fog signal

Historical Examples of 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


  • A “fog-signal” is employed on railways when the ordinary signals are obliterated within working distances.

British Dictionary definitions for fog signal

fog signal

  1. a signal used to warn railway engine drivers in fog, consisting of a detonator placed on the line
Show More
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