diffusion

[ dih-fyoo-zhuhn ]

/ dɪˈfyu ʒən /

SEE SYNONYMS FOR diffusion ON THESAURUS.COM

noun

act of diffusing; state of being diffused.

prolixity of speech or writing; discursiveness.

Physics.

Also called migration. an intermingling of molecules, ions, etc., resulting from random thermal agitation, as in the dispersion of a vapor in air.
a reflection or refraction of light or other electromagnetic radiation from an irregular surface or an erratic dispersion through a surface; scattering.

Movies. a soft-focus effect resulting from placing a gelatin or silk plate in front of a studio light or a camera lens, or through the use of diffusion filters.

Meteorology. the spreading of atmospheric constituents or properties by turbulent motion as well as molecular motion of the air.

Anthropology, Sociology.Also called cultural diffusion . the transmission of elements or features of one culture to another.

Origin of diffusion

First recorded in 1325–75; Middle English, from Latin diffūsiōn- (stem of diffūsiō ) “a spreading out,” equivalent to diffūs(us) + -iōn- noun suffix; see diffuse, -ion

OTHER WORDS FROM diffusion

in·ter·dif·fu·sion, nounnon·dif·fu·sion, nouno·ver·dif·fu·sion, nounre·dif·fu·sion, noun

self-dif·fu·sion, noun

WORDS THAT MAY BE CONFUSED WITH diffusion

diffraction, diffusion , reflection, rarefaction, refraction

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for diffusion

diffusion

/ (dɪˈfjuːʒən) /

noun

the act or process of diffusing or being diffused; dispersion

verbosity

physics

the random thermal motion of atoms, molecules, clusters of atoms, etc, in gases, liquids, and some solids
the transfer of atoms or molecules by their random motion from one part of a medium to another

physics the transmission or reflection of electromagnetic radiation, esp light, in which the radiation is scattered in many directions and not directly reflected or refracted; scattering

Also called: diffusivity physics the degree to which the directions of propagation of reverberant sound waves differ from point to point in an enclosure

anthropol the transmission of social institutions, skills, and myths from one culture to another

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Cultural definitions for diffusion

diffusion

The spreading of atoms or molecules of one substance through those of another, especially into liquids or gases.

Medical definitions for diffusion

diffusion

[ dĭ-fyōō′zhən ]

n.

The process of diffusing or the condition of being diffused.

The spontaneous intermingling of the particles of two or more substances as a result of random thermal motion.

dialysis

Scientific definitions for diffusion

diffusion

[ dĭ-fyōō′zhən ]

The movement of atoms or molecules from an area of higher concentration to an area of lower concentration. Atoms and small molecules can move across a cell membrane by diffusion. Compare osmosis.

The reflection or refraction of radiation such as light or sound by an irregular surface, tending to scatter it in many directions.

单词	diffusion
释义	diffusion [ dih-fyoo-zhuhn ] / dɪˈfyu ʒən / SEE SYNONYMS FOR diffusion ON THESAURUS.COM noun act of diffusing; state of being diffused. prolixity of speech or writing; discursiveness. Physics. Also called migration. an intermingling of molecules, ions, etc., resulting from random thermal agitation, as in the dispersion of a vapor in air. a reflection or refraction of light or other electromagnetic radiation from an irregular surface or an erratic dispersion through a surface; scattering. Movies. a soft-focus effect resulting from placing a gelatin or silk plate in front of a studio light or a camera lens, or through the use of diffusion filters. Meteorology. the spreading of atmospheric constituents or properties by turbulent motion as well as molecular motion of the air. Anthropology, Sociology.Also called cultural diffusion . the transmission of elements or features of one culture to another. Origin of diffusion First recorded in 1325–75; Middle English, from Latin diffūsiōn- (stem of diffūsiō ) “a spreading out,” equivalent to diffūs(us) + -iōn- noun suffix; see diffuse, -ion OTHER WORDS FROM diffusion in·ter·dif·fu·sion, nounnon·dif·fu·sion, nouno·ver·dif·fu·sion, nounre·dif·fu·sion, noun self-dif·fu·sion, noun WORDS THAT MAY BE CONFUSED WITH diffusion diffraction, diffusion , reflection, rarefaction, refraction Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for diffusion diffusion / (dɪˈfjuːʒən) / noun the act or process of diffusing or being diffused; dispersion verbosity physics the random thermal motion of atoms, molecules, clusters of atoms, etc, in gases, liquids, and some solids the transfer of atoms or molecules by their random motion from one part of a medium to another physics the transmission or reflection of electromagnetic radiation, esp light, in which the radiation is scattered in many directions and not directly reflected or refracted; scattering Also called: diffusivity physics the degree to which the directions of propagation of reverberant sound waves differ from point to point in an enclosure anthropol the transmission of social institutions, skills, and myths from one culture to another Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to diffusion dissipation, dispersion, dispersal, dissemination, propagation, scattering, circulation, expansion, propaganda Cultural definitions for diffusion diffusion The spreading of atoms or molecules of one substance through those of another, especially into liquids or gases. The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Medical definitions for diffusion diffusion [ dĭ-fyōō′zhən ] n. The process of diffusing or the condition of being diffused. The spontaneous intermingling of the particles of two or more substances as a result of random thermal motion. dialysis The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for diffusion diffusion [ dĭ-fyōō′zhən ] The movement of atoms or molecules from an area of higher concentration to an area of lower concentration. Atoms and small molecules can move across a cell membrane by diffusion. Compare osmosis. The reflection or refraction of radiation such as light or sound by an irregular surface, tending to scatter it in many directions. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
随便看	shorthorn short-horned grasshopper short hundredweight shortie short interest short iron shortish short jenny short-laid shortleaf pine short leg short line short list short-lived short loin shortly short metre short money short notice, on short odds short of short order short palmar muscle short radial extensor muscle of wrist short-range

diffusion

noun

Origin of diffusion

OTHER WORDS FROM diffusion

WORDS THAT MAY BE CONFUSED WITH diffusion

British Dictionary definitions for diffusion

noun

Words related to diffusion

Cultural definitions for diffusion

Medical definitions for diffusion

n.

Scientific definitions for diffusion