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/dɪfjˈuʒən/ Listen

noun

Diffusion n.

The act of diffusing, or the state of being diffused; a spreading; extension; dissemination; circulation; dispersion. "A diffusion of knowledge which has undermined superstition."

(Physiol.) The act of passing by osmosis through animal membranes, as in the distribution of poisons, gases, etc., through the body. Unlike absorption, diffusion may go on after death, that is, after the blood ceases to circulate.

Synonyms: Extension; spread; propagation; circulation; expansion; dispersion.

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Etymology of 'Diffusion'

Collaborative International Dictionary of English 0.48

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"Diffusion" Quotes from Famous Books

... of newspapers and letters and tape-machines and telegrams and such like aids to the speedy diffusion of news, the same travels quicker in villages than in cities. Word of mouth can spread gossip with marvelous rapidity in sparsely inhabited communities, since it is obvious that in such places every person knows the other—as the saying ...

— The Green Mummy • Fergus Hume

... voice of old associations, of other visits, of companionships now ended—an insinuating eloquence which was at the same time somehow identical with the general sharp contagion of Paris. There was youth in the air, and a multitudinous newness, for ever reviving, and the diffusion of a hundred talents, ingenuities, experiments. The summer clouds made shadows on the roof of the great building; the white images, hard in their crudity, spotted the place with provocations; the rattle of plates at the restaurant sounded sociable in the distance, and our young ...

— The Tragic Muse • Henry James

... seen the plant at Oak Ridge where uranium was extracted by the gas diffusion method. The plant covered acres. Only a government could afford ...

— The Blue Ghost Mystery • Harold Leland Goodwin

... others of the same type; and we may here merely mention exorcism of demons, and the miraculous cure of disease, as popular instances; they were also followed by a long succession of others, quite as well authenticated, whose occurrence only became less frequent in proportion as the diffusion of knowledge dispelled popular credulity. Even at the present day a stray miracle is from time to time reported in outlying districts, where the ignorance and superstition which formerly produced so abundant a growth of them are not yet entirely dispelled" ...

— The Freethinker's Text Book, Part II. - Christianity: Its Evidences, Its Origin, Its Morality, Its History • Annie Besant

... in the Indian Archipelago, which is, with the exception of the few vessels that sometimes bring ponies to the Isle of France and the British settlements, almost wholly in the hands of the Americans. Indeed no fact which I have met with has so much surprised me as the extraordinary diffusion of the American commerce, and the great spirit of enterprise exhibited by them. For in many places where the British merchants can find no commerce apparently worth their attention the Americans carry on a lucrative and prosperous trade, and ...

— Journals Of Two Expeditions Of Discovery In North-West And Western Australia, Vol. 1 (of 2) • George Grey

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