subtunnel
nounEtymology From sub- + tunnel.
1
A tunnel forming part of a larger tunnel or tunnel system.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
noun
Etymology From sub- + tunnel.
A tunnel forming part of a larger tunnel or tunnel system.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
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