trans·​moun·​tain ˌtran(t)s-ˈmau̇n-tᵊn How to pronounce transmountain (audio)
: crossing or extending over or through a mountain
a transmountain road
a transmountain tunnel

Word History

First Known Use

1929, in the meaning defined above

Time Traveler
The first known use of transmountain was in 1929

Dictionary Entries Near transmountain

Cite this Entry

“Transmountain.” Dictionary, Merriam-Webster, Accessed 20 Jul. 2024.

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