The movement of ions or molecules from regions of high concentration to low concentration within a solution.

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 c [..]

Movement of material from an area highly concentrated to an area where there is a lower concentration

The transmission of ideas or materials from culture to culture, or from one area to another.

n. Dispersion.

[L. diffundere, to pour out] The spontaneous tendency of a substance to move down its concentration gradient from a more concentrated to a less concentrated area.

Spontaneous differential movement of components in a system. Note: In molecular terms, the driving force for diffusion is random thermal motion. In thermodynamic terms, the driving force is a gradient [..]

Diffusion is the way in which innovations spread, through market or non market channels, from their very first implementation to different consumers, countries, regions, sectors, markets and firms. Wi [..]

late 14c., from Latin diffusionem (nominative diffusio) "a pouring forth," noun of action from past participle stem of diffundere "scatter, pour out," from dis- "apart, in eve [..]

The transport of matter solely by the random motions of individual molecules not moving together in coherent groups. Diffusion is a consequence of concentration gradients. The process of mixing fluid [..]

spread through space over time. In geography, usually applied to the uptake of an innovatory piece of technology or idea.

A technique for uranium enrichment in which the lighter Uranium 235 isotopes in UF6 gas move through a porous barrier more rapidly than the heavier Uranium 238 isotopes.

The process of intermingling atoms or other particles within a solution or gas.

 – Placing materials (such as filters, glass, mesh, etc.) in front of the light in order to reduce the light’s harshness.

A technique for uranium enrichment in which the lighter Uranium 235 isotopes in UF6 gas move through a porous barrier more rapidly than the heavier Uranium 238 isotopes.

the reduction or softening of the harshness or intensity of light achieved by using a diffuser or translucent sheet (lace or silk) in front of the light to cut down shadows; materials include screen, [..]

The spread of cultural traits from one sociocultural system to another.

(du1-fyoo´zhun) The net movement of molecules or ions from regions of higher to regions of lower concentration. digestion

The random movement of molecules from one location to another because of random thermal molecular motion; net diffusion always occurs from a region of higher concentration to a region of lower concentration. Digastricus

1. The processing of spreading cultural characteristics within a culture or community. 2. Biology. Passive transport. 3. The process wher something is spread out through something else.

spreading (pop)

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.  

Diffusion occurs when a substance moves from an area of high concentration to an area of low concentration. Concentration can be described as how much of a substance there is in relation to the other [..]

  The random movement of molecules within a fluid.

The net movement of gases or dissolved substances, as a result of their kinetic energy, from regions of their higher concentration to regions of their lower concentration, down a concentration gradient, until equilibrium is reached.

Movement of substances (usually gases or substances in solution) down their diffusion gradient, from a region of higher concentration to a region of lower concentration. The smaller the particles, the higher the temperature and the greater the concentration difference, the faster is the rate of diffusion.

The spontaneous spread of molecules of one substance among molecules of another substance until a uniform concentration is achieved. See Figure 3.2.

Spreading due to the cumulative effect of small random movements.

The process by which a substance moves from an area of high concentration, through a barrier or membrane, to an area of lower concentration.

the movement of molecules from a region of higher concentration to one of lower concentration

The process whereby particles of liquid , gasses or solids intermingle as the result of spontaneous movement caused by thermal agitation and dissolved substances move from a region of higher to one of [..]

The spontaneous and even mixing of gases or liquids. Dispersing Agent-

The movement of gas molecules or aerosols into liquids, caused by a concentration gradient.

A thermal process in which a chemical species (e.g. a desired dopant or an undesirable contaminant) redistributes itself from regions of higher concentration to regions of lower concentration. Fick's laws describe classical diffusion. Note that diffusion in semiconductors exhibits many anomalies that are not accurately described by these laws.

The movement of an innovation (or other phenomenon) across space.

process by which food, oxygen, water and other materials enter and leave a cell through openings in the cell membrane; the movement of molecules from where they are crowded to where they are less crow [..]

The interpenetration of one substance into another as a result of thermal / random motion of the individual particles. (e.g., the diffusion of a plasma across a magnetic field as a result of collisions which cause particles to move onto new field lines.) See also classical diffusion, neoclassical diffusion, anomalous diffusion, transport.

(1) The penetration of one type of particle into a mass of a second type of particle. (2) The scattering of light by irregular reflection.

The spread of inventions and discoveries from one group or culture to another on a voluntary basis; a source of cultural change.

The spread of a cultural trait (object, idea, practice, institution) from one society to another.

Process by which different substances mix arising from the random movement of their individual atoms, molecules and ions.

(n) (physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration(n) the spread of social institutions (and myt [..]

is either characterized as molecular or turbulent. molecular diffusion results from the random motion of molecules and it leads to a homogenization of fluid properties if given enough time. turbulent diffusion of fluid properties such as heat, salinity, momentum, and chemical concentrations is due to fluctuating fluid velocities. the velocity fluct [..]

The net movement of units of a substance from areas of higher concentration to areas of lower concentration of that substance

The gradual movement or spread of a substance from an area of high concentration to an area of lower concentration. The term is often used in the context of gas diffusion such as the movement of oxyge [..]

The spread of a technological innovation over time.

(1) the movement or atoms or molecules to new sites within a material. (2) Spreading of a constituent in a gas, liquid or solid, tending to make the composition of all parts uniform.

is the borrowing of cultural traits between societies, either directly or through intermediaries.

When particles move to a lower area of concentration from a high area of concentration.

the movement of gas molecules through the gas.

Diffusion is a process that happens when a substance moves from an area of higher concentration to an area of lower concentration. More Information: Gases

The movement of suspended or dissolved particles (or molecules) from a more concentrated to a less concentrated area. The process tends to distribute the particles or molecules more uniformly.

The movement of suspended or dissolved particles (or molecules) from a more concentrated to a less concentrated area. The process tends to distribute the particles or molecules more uniformly.

The movement of suspended or dissolved particles from a more concentrated to a less concentrated area. The process tends to distribute the particles more uniformly.

Filter used on camera to create a soft focus effect. It can also refer to a white sheet of material used on a movie light to soften the shadows.

The effect of light scattering over a large solid angle. Light is diffused by reflecting from or transmitting through an irregular (rough) surface. Typically, precautions are taken to remove diffusion [..]

a passive process, in which particles in solution move from a region of higher concentration to one of lower concentration.

is a process where heat or chemicals are transported in response to differences in chemical concentration or temperature. Movement is from high concentration (or temperature) to low concentration (or temperature). This process could involve liquids, gases and solids.  

The tendency of a gas or solute to pass from a point of higher Pressure or concentration to a point of lower Pressure or concentration and to distribute itself throughout the available space. Diffusio [..]

The passive Movement of molecules exceeding the rate expected by simple Diffusion. No energy is expended in the process. It is achieved by the introduction of passively diffusing molecules to an envir [..]

The broad dissemination of new ideas, procedures, techniques, materials, and devices and the degree to which these are accepted and used.

The Movement of molecules from one location to another as effected by Temperature changes.

The tendency of a gas or solute to pass from a point of higher pressure or concentration to a point of lower pressure or concentration and to distribute itself throughout the available space; a major [..]

Diffusion: The process by which a substance tends to spread itself evenly within the available space.

The flow of molecules, usually, but not necessarily, through a membrane.

The movement of suspended or dissolved particles from a more concentrated to a less concentrated region as a result of the random movement of individual particles; the process tends to distribute them [..]

The random movement (spreading) and mass transport of molecules within a phase from regions of highest concentrations to regions of lowest concentrations.

Diffusion is a newer treatment in the realm of gems. It is used to alter or improve the color. Diffusion has been used on various gems, but most noticeably sapphire, producing a range of bright colors from yellow to red. The process employs a combination of chemical compounds and heat. Two types of diffusion are commonly encountered: surface and la [..]

See DIFFUSE REFLECTION.

The net movement of molecules in the direction of lower concentration.

Diffusion is the spontaneous movement of liquid, gas, or solid particles from an area of high concentration to low concentration. For example, uncapping a bottle of essential oil produces diffusion as [..]

  A moisture transport mechanism; the way in which water vapor moves through materials such as sheetrock and plywood, working its way from high concentrations of moisture to low concentrations.

The scattering of sound.

Tendency of conduction band electrons to wander across a PN junction to combine with valence band holes.

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.

The random movement of particles from an area of greater concentration to one of a lower concentration.

The process by which molecules in a single phase equilibrate to a zero concentration gradient by random molecular motion (Brownian motion). The flux of molecules is from regions of high concentration to low concentration and is governed by Fick's Second Law.

The scattering of reflected light waves from an object, such as white paper. Controlled application of impurity atoms to a semiconductor substrate.

Diffusion is the process by which a new idea or new product is accepted by the market. The rate of diffusion is the speed with which the new idea spreads from one consumer to the next. Adoption (the r [..]

Diffusion is a time-dependent random process causing a spread in space. Diffusion may also refer to:

Diffusion is the net movement of molecules or atoms from a region of high concentration (or high chemical potential) to a region of low concentration (or low chemical potential) as a result of random [..]

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 aco [..]

Diffusion is the net movement of molecules or atoms from a region of high concentration (or high chemical potential) to a region of low concentration (or low chemical potential) as a result of random [..]

(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 [..]

refers to material used on lights to reduce harsh shadows by softening light. For more information, check out our lesson on Diffusion.

Blending of a gas and air, resulting in a homogeneous mixture. Blending of two or more gases.

the spread of people, ideas, technology and products.

A Translucent material placed in front of a Light to soften Highlights and Shadows, reduce Contrast and increase Beam Angle.