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vapor barrier
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This shows grade level based on the word's complexity.
noun Building Trades.
a layer of material, as plastic film or foil, used to protect installed insulation by retarding the transmission of moisture from the interior environment.
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Which of the following nouns has an irregular plural form?
Origin of vapor barrier
First recorded in 1940–45
Words nearby vapor barrier
vape, vape pen, Vaphio, vapid, vapor, vapor barrier, vaporescence, vaporetto, vaporific, vaporimeter, vaporing
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022