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English definition of “osmosis”

osmosis

noun [U] uk   /ɒzˈməʊ.sɪs/ us    /ɑːzˈmoʊ-/

osmosis noun [U] (LIQUID)

specialized biology the process in plants and animals by which a liquid moves gradually from one part of the body or the plant to another through a membrane (= cell covering): Fluid flows back into the tiny blood vessels by osmosis.

osmosis noun [U] (IDEAS)

the way in which ideas and information gradually spread between people: The children were never taught the songs, they just listened to other children singing them and learned them by osmosis. Reading is not picked up by a process of osmosis, but needs to be taught.
osmotic
adjective [before noun] uk   /-ˈmɒt.ɪk/ us    /-ˈmɑː.t̬ɪk/
an osmotic process
(Definition of osmosis from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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