back vent


Definition of back vent

: a ventilating pipe attached to a waste pipe on the sewer side of its trap to prevent siphonage

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Other Words from back vent

back venting noun

First Known Use of back vent

1915, in the meaning defined above

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The first known use of back vent was in 1915

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Cite this Entry

“Back vent.” Dictionary, Merriam-Webster, Accessed 29 Nov. 2020.

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