- The subjective enlargement of a bright object seen against a dark background.
- Exposure to the action of electromagnetic radiation (heat, light, x-rays).
- The spreading of nervous impulses from one area in the brain or cord, or from a tract, to another tract.
[L. ir-radio, (in-r), pp. -radi-atus, to beam forth]
See Also: radiation
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.