SINCE 1828
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cab signal

noun
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Definition of cab signal

: a visual signal in the cab of a locomotive used in conjunction with interlocking signals and in conjunction with or in lieu of block signals to provide continuous data for the engineman on conditions affecting train or engine movement

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First Known Use of cab signal

1883, in the meaning defined above

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The first known use of cab signal was in 1883

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Cite this Entry

“Cab signal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cab%20signal. Accessed 6 Mar. 2021.

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