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Radiation

Definition(s)

Emission or propagation of electromagnetic energy (waves/rays), or the waves/rays themselves; a stream of electromagnetic particles (electrons, neutrons, protons, alpha particles) or a mixture of these. The most common source is the sun.

Definition from: MeSH via Unified Medical Language SystemThis link leads to a site outside Genetics Home Reference. at the National Library of Medicine

Energy released in the form of particles or electromagnetic waves. Common sources of radiation include radon gas, cosmic rays from outer space, and medical x-rays.

Definition from: Physician Data Query via Unified Medical Language SystemThis link leads to a site outside Genetics Home Reference. at the National Library of Medicine

Related discussion in the Handbook

See also Understanding Medical Terminology.

 
Published: December 16, 2014