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

Contents

• Physical sciences
• More specific meanings
• Social sciences
• Technology
• Other uses
• See also

Diffusion may also refer to:

Physical sciences

• Molecular diffusion, spontaneous dispersion of mass (distinct from migration, caused by an external force)
• Conduction of heat
• Momentum diffusion
• Diffusion equation
  • Heat equation
  • Schrödinger equation
• Eddy diffusion

Social sciences

• 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

Technology

• Diffusion (cryptography), the spreading of influence of bits in a cipher
• Error diffusion in image processing
• Diffusion model in machine learning media or text generation.

Other uses

• 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

See also

• Diffuser (disambiguation)
• Diffuse nebula
• Migration (disambiguation)

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