pilot engine

noun

Definition of pilot engine

: a locomotive going in advance of a train to make sure that the way is clear

First Known Use of pilot engine

1838, in the meaning defined above

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Time Traveler for pilot engine

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The first known use of pilot engine was in 1838

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Cite this Entry

“Pilot engine.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/pilot%20engine. Accessed 7 December 2019.

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