Diffusion (disambiguation)

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Diffusion is a time-dependent random process causing a spread in space.

Diffusion may also refer to:

Physical sciences

Anomalous diffusion, the movement of particles from a region of lower concentration to a region of higher concentration
Diffusion MRI
Diffusion (acoustics), sound waves
Atomic diffusion
Brownian motion
Collective diffusion
Facilitated diffusion
Effusion of a gas through small holes
Gaseous diffusion
Itō diffusion
Knudsen diffusion of particles from very small containers
Osmosis, the movement of molecules through a membrane
Reverse osmosis, a process to separate unwanted particles from a fluid
Photon diffusion, an optical effect
- Diffuse reflection, the reflection of light from an uneven or granular surface
Reverse diffusion, the movement of particles from a region of lower concentration to a region of higher concentration
Rotational diffusion
Self-diffusion
Surface diffusion
Thermodiffusion

Demic diffusion of a population to a new area (uninhabited or already inhabited by others)
Cultural diffusion of culture ideas and items within a single culture or from one to another
- Diffusion of innovations between cultures or societies, or within one
- Lexical diffusion of sound changes across a language

Diffusion (business), the process by which a new idea or new product is accepted by the market
Diffusion line, a secondary line of merchandise created by a high-end fashion designer
Diffusion Pharmaceuticals, a drug development company
Diffusion process, in probability theory the solution to a stochastic differential equation
Diffusion of responsibility
Society for the Diffusion of Useful Knowledge
Diffusion Science Radio Show, a science radio show and podcast on 2SER in Sydney
Diffusion Records, an independent record label
Sound diffusion, a performance practice in electronic music