Phrase guide
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Sound
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No pronunciation record was provided for this word.
noun
A type of extended and perforated tunnel portal on high-speed railways, designed to reduce the build-up of pressure when a train enters a tunnel at high speed.
Definition source: English Wiktionary via Wiktextract
Topics: rail-transport, railways, transport
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
No etymology was provided for this word.
