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permeate

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verb British English pronunciation: permeate /ˈpɜː(r)mieɪt/ 
Word Forms
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present tense
I/you/we/theypermeate
he/she/itpermeates
present participlepermeating
past tensepermeated
past participlepermeated
  1. 2
    [intransitive/transitive] if gas, liquid, or a smell permeates something, it spreads into and through every part of it

    The unpleasant odour permeated every room.

    permeate through/into:

    Water had permeated into the old walls.

derived word

permeation

 British English pronunciation: permeation /ˌpɜː(r)miˈeɪʃ(ə)n/  noun [uncountable]

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