irradiation

[ ih-rey-dee-ey-shuh n ]
/ ɪˌreɪ diˈeɪ ʃən /

noun

Origin of irradiation

First recorded in 1580–90, irradiation is from the Late Latin word irradiātiōn- (stem of irradiātiō). See ir-1, radiation

Related forms

post·ir·ra·di·a·tion, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for irradiation

British Dictionary definitions for irradiation

irradiation

/ (ɪˌreɪdɪˈeɪʃən) /

noun

the act or process of irradiating or the state of being irradiated
the apparent enlargement of a brightly lit object when it is viewed against a dark background
a shaft of light; beam or ray
med
  1. the therapeutic or diagnostic use of radiation, esp X-rays
  2. exposure of a patient to such radiation
another name for radiation, irradiance
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for irradiation

irradiation

[ ĭ-rā′dē-āshən ]

n.

Exposure or subjection to the action of radiation for diagnostic or therapeutic purposes.
Medical treatment by exposure to radiation.
The spread of a nervous impulse beyond the usual path of conduction.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.