fog signal

American  

noun

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

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fog signal British  

noun

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

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Etymology

Origin of fog signal

First recorded in 1750–60

Example Sentences

If you’re a boat person who savors the faint scent of diesel, however, you’ll want to book Walter’s Room, a small bedroom and sitting room in the fog signal building.

From Los Angeles Times

If you’re a boat person who savors the faint scent of diesel, however, you’ll want to book Walter’s Room, a small bedroom and sitting-room in the fog signal building.

From Los Angeles Times

There’s a horseshoe pitch on one side of the fog signal building.

From Los Angeles Times

Before the 11 a.m. boat ride back to the mainland, Dre Elmore likes to show off the retired Fresnel lens and the array of still-working machinery in the fog signal building.

From Los Angeles Times

But the payoff for me came when he demonstrated the station’s rare 1934 diaphone fog signal, which sounds off with two descending blasts, basso profundo.

From Los Angeles Times