Phenomena and Processes

Diffusion

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. Diffusion, especially FACILITATED DIFFUSION, is a major mechanism of BIOLOGICAL TRANSPORT.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

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. Diffusion, especially FACILITATED DIFFUSION, is a major mechanism of BIOLOGICAL TRANSPORT.

MeSH Record

Classification

Broader headings

Narrower headings

Related Concepts

Knowledge Graph

Loading graph…

Drag nodes to rearrange; hover to trace links; click a node to open its page.

MeSH Record

See Also

MeSH Record

Synonyms

1 entry terms
  • Diffusions

MeSH Record

Aspects Covered

2 allowable subheadings

Indexed with the subheadings drug effects, radiation effects.

MeSH Record

History Note

70(68)

MeSH Record

Previous Indexing

  • Biophysics (1966-1967)
  • Chemistry, Physical (1966-1967)

MeSH Hierarchy

Tree Numbers

  1. G01w.202w
  2. G02.196w

AMA Style

References

  1. National Library of Medicine. Diffusion. Medical Subject Headings (MeSH). 2026. Unique ID D004058. http://id.nlm.nih.gov/mesh/2026/D004058
  2. Diffusion. In: Wikipedia. https://en.wikipedia.org/wiki/Diffusion
  3. Diffusion. In: Wikidata. https://www.wikidata.org/wiki/Q163214