summit tunnel

noun

A tunnel driven through a pass at fairly high altitude to minimize the length of tunnel required, at the cost of requiring steeper and more winding routes up to each end of the tunnel.

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Meanings

nounsummit tunnel (plural summit tunnels)

plural summit tunnels

  1. civil engineeringA tunnel driven through a pass at fairly high altitude to minimize the length of tunnel required, at the cost of requiring steeper and more winding routes up to each end of the tunnel.
Cite this entry
APA

summit tunnel. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/summit%20tunnel

MLA

“summit tunnel.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/summit%20tunnel. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “summit tunnel,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/summit%20tunnel.

Source: summit tunnel on Wiktionary, CC BY-SA 4.0.