diffusion

1. the spontaneous movement and scattering of particles of liquids, gases, or solids. 2. the migration of dissolved substances from an area of high concentration to an area of low concentration.

diffusion

(Life processes and cells) The movement of particles (molecules or ions) from an area of higher concentration to an area of lower concentration

diffusion

(Learning Modules / Geography / Geography of health) The spread of a phenomenon, for example a disease or an idea.

Diffusion

Diffusion is the net movement of a substance (e.g., an atom, ion or molecule) from a region of high concentration to a region of low concentration. This is also referred to as the movement of a substance down a concentration gradient. A gradient is the change in the value of a quantity (e.g., concentration, pressure, temperature) with the change i...
Found on http://en.wikipedia.org/wiki/Diffusion

Diffusion

(1) Molecular mixing of one substance into another substance. (2) Redirection or refraction of solar insolation in many directions. Process cause the beam of traveling radiation to become less intense.
Found on http://www.physicalgeography.net/physgeoglos/d.html

diffusion

(dĭ-fu´zhәn) the state or process of being widely spread. the spontaneous mixing of the molecules or ions of two or more substances resulting from random thermal motion; its rate is proportional to the concentrations of the substances and it increases with the temperature. d...
Found on http://www.encyclo.co.uk/local/21001

diffusion

(du1-fyoo;zhun) The net movement of molecules or ions from regions of higher to regions of lower concentration.
Found on http://www.mhhe.com/biosci/abio/glossary.mhtml

diffusion

(l) Spreading of a constituent in a gas, liquid, or solid, tending to make the composition of all parts uniform. (2) The spontaneous movement of atoms or molecules to new sites within a material
Found on http://www.encyclo.co.uk/local/21115

diffusion

[n] - (physics) the process of diffusing 2. [n] - the spread of social institutions (and myths and skills) from one society to another
Found on http://www.webdictionary.co.uk/definition.php?query=diffusion

Diffusion

• (n.) 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. • (n.) The act of diffusing, or the state of being diffused; a spreading; extension; dissemination; circulation; ...
Found on http://thinkexist.com/dictionary/meaning/diffusion/

diffusion

noun the spread of social institutions (and myths and skills) from one society to another
Found on https://www.encyclo.co.uk/local/20974

Diffusion

[acoustics] Diffusion, in acoustics and architectural engineering, is the efficacy by which sound energy is spread evenly in a given environment. A perfectly diffusive sound space is one that has certain key acoustic properties which are the same anywhere in the space. A non-diffuse sound space would have considerably different reverberatio...
Found on http://en.wikipedia.org/wiki/Diffusion_(acoustics)

Diffusion

[business] Diffusion is the process by which a new idea or new product is accepted by the market. The rate of diffusion is the speed that the new idea spreads from one consumer to the next. Adoption (the reciprocal process as viewed from a consumer perspective rather than distributor) is similar to diffusion except that it deals with the ps...
Found on http://en.wikipedia.org/wiki/Diffusion_(business)

diffusion

Click images to enlargeNet spontaneous and random movement of molecules or particles in a fluid (gas or liquid) from a region in which they are at a high concentration to a region of lower concentration, until a uniform concentration is achieved throughout. The difference in concentration between two such regions is calle...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0031706.html

Diffusion

Dif·fu'sion noun [ Latin diffusio : confer French diffusion .] 1. The act of diffusing, or the state of being diffused; a spreading; extension; dissemination; circulation; dispersion. « A diffusion of knowledge which has undermined superstition.» Burke.
Found on http://www.encyclo.co.uk/webster/D/64

Diffusion

1.: A filter used on the camera to create a soft focus effect. 2.: A white or pearlecent sheet of material used on a movie light to soften the shadows
Found on https://www.encyclo.co.uk/local/21112

Diffusion

AcousticsThe scattering or random reflection of a sound wave from a surface. The directions of reflected sound is changed so that listeners may have sensation of sound coming from oil directions at equal levels.ChemistryThe mixing of two substances caused by random molecular motions. Gases diffuse very quickly; liquids diffuse much more slowly, and...
Found on http://www.diracdelta.co.uk/science/source/d/i/diffusion/source.html

Diffusion

Blending of a gas and air, resulting in a homogeneous mixture. Blending of two or more gases.
Found on http://www.coaleducation.org/glossary.htm

Diffusion

Blending of a gas and air, resulting in a homogeneous mixture. Blending of two or more gases.
Found on http://www.rocksandminerals.com/glossary.htm

diffusion

diffuse. Compare with effusion. The mixing of two substances caused by random molecular motions. Gases diffuse very quickly; liquids diffuse much more slowly, and solids diffuse at very slow (but often measurable) rates. Molecular collisions make diffusion slower in liquids and solids.
Found on http://antoine.frostburg.edu/chem/senese/101/glossary/d.shtml

Diffusion

Diffusion is part of transport phenomena. Diffusion is the movement of molecules from a region of higher concentration to one of lower concentration by random molecular motion.
Found on http://en.wikipedia.org/wiki/Glossary_of_fuel_cell_terms

Diffusion

Diffusion is the gradual mixing of gases or liquids when brought into direct contact. Thus, in the case of gases, when a jar of oxygen and a jar of hydrogen are connected together by a tube or opening of any kind, they rapidly become mixed; and their mixture does not depend on gravity, but takes place in opposition to that force, as may be shown by...
Found on http://www.probertencyclopaedia.com/browse/GD.HTM

diffusion

Diffusion is the spontaneous mixing of one substance with another when in contact or separated by a permeable membrane. Diffusion is a result of the random motions of their component atoms, molecules, ions, or other particles. Diffusion occurs most readily in gases, less so in liquids, and least in solids. The rate of diffusion is proportional to t...
Found on http://www.ktf-split.hr/periodni/en/abc/d.html

diffusion

diffusion, in chemistry, the spontaneous migration of substances from regions where their concentration is high to regions where their concentration is low. Diffusion is important in many life processes. It occurs, for example, across the alveolar membrane of the lung, which separates the carbon-dio...
Found on http://www.infoplease.com/ce6/sci/A0815496.html

Diffusion

Function of a carburettor. The diffusion tube is perforated to assist in atomising the fuel before it is introduced into the choke tube.
Found on http://www.aeroplanemonthly.com/glossary/
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