permeator

/ˈpɜːrmiˌeɪtər/
noun
  1. A device or substance that allows something to pass through it, or a person or thing that spreads through something.
    • The water filter uses a special permeator to remove impurities.
    • As a permeator of new ideas, she helped change the company's culture.
    • In the lab, the gas permeator measured how quickly air passed through the membrane.
Synonyms
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