radiation Hear it!

radiation definition

ra·dia·tion (rā′dē ā′s̸hən)

noun

  1. the act or process of radiating; specif., the process in which energy in the form of rays of light, heat, etc. is sent out through space from atoms and molecules as they undergo internal change
  2. the rays sent out; radiant energy
  3. radial arrangement of parts
  4. Biol. adaptive radiation
  5. Nuclear Physics energy emitted as electromagnetic waves, as gamma or X-rays, or as energetic nuclear particles, as neutrons, alpha and beta particles, etc.

Etymology: L radiatio

Related Forms:

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

Alternate definitions:

medical radiation definition - medical

telecom radiation definition - telecom

radiation Synonyms

radiation

n.

  1. Dissemination

    propagation, dissipation, divarication, polarization, scattering, spread, diffraction, transmission, broadcast, emission, ramification, diffusion, dispersion, circulation, divergence, dispersal; see also distribution 1.

  2. Fallout

    nuclear particles, radioactive particles, radioactivity, radiant energy; see fallout, pollution, X-rays.


Webster's New World Roget's A-Z Thesaurus Copyright © 1999 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

radiation Usage Examples

Converse of object

  • ionize: Note, no sensing of UV or of ionizing radiation.

Adjective modifier

  • electromagnetic: X-ray - pictures of the bones taken using electromagnetic radiation.

Modifies a noun

  • emises: To a handful of internationally branded had a far radiations emises par.

Noun used with modifier

  • synchrotron: Much higher levels of direct investment by industry to synchrotron radiation sources are reported in the US.
radiation usage examples (more)

The word usage examples above have been gathered from various sources to reflect current and historical usage. They do not represent the opinions of YourDictionary.com.

Link to this page:

Cite this page:

MLA Style

"radiation." Webster's New World College Dictionary. 2009

  • Your Dictionary. 5 July 2009
  • <www.yourdictionary.com/radiation>

APA Style

radiation. (2009). In Webster's New World College Dictionary

  • Retrieved July 5th, 2009, from www.yourdictionary.com/radiation

Comments:

Please or Register to post a comment