Meaning & use
permeation
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The process by which a substance spreads through or penetrates something else.
See it in a sentence
The permeation of moisture through the concrete eventually caused the reinforcing bars to rust.
Scientists measured the permeation of gas through the polymer membrane to test its suitability for packaging.
A note on using this word
In materials science, "permeation" specifically describes molecules passing through a barrier at the molecular level, distinct from simple leakage through holes.
Words with a similar meaning
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Make it your own
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