vapor barrier

va·por bar·ri·er

V v

Definition of vapor barrier words

noun vapor barrier a layer of material, as plastic film or foil, used to protect installed insulation by retarding the transmission of moisture from the interior environment. 1

before 1940

One of the 7% newest English words

First recorded in 1940-45

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

This term is known only to a narrow circle of people with rare knowledge. Only 7% of English native speakers know the meaning of this word.

According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

This diagram is provided by Google Ngram Viewer

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