pilot engine

noun

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

Word History

First Known Use

1838, in the meaning defined above

Time Traveler
The first known use of pilot engine was in 1838

Browse Nearby Words

piloted
pilot engine
pilot film
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Cite this Entry

“Pilot engine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pilot%20engine. Accessed 18 Jul. 2025.

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