- a type of whistle sounded by a blast of steam, as used formerly in factories, on locomotives, etc
Examples from the Web for steam whistle
Even the discordant shriek of the steam-whistle has been superseded in Freeland.Freeland
Yachting etiquette doesn't allow a steam-whistle to be sounded in salute.Blow The Man Down
In 1836 the steam-whistle had not yet been introduced on the boats of the western rivers.Southern Stories
And with a shriek from the steam-whistle the horses began to go around.Dick, Marjorie and Fidge
G. E. Farrow
Have often heard siren song of steam-whistle in and about the Thames.