Definition of irradiation in US English:



  • 1The process or fact of irradiating or being irradiated.

    ‘ultraviolet irradiation’
    • ‘Different concentrations of BPA as well as different periods of irradiation with thermal neutrons were studied.’
    • ‘Patients receiving total body irradiation for bone marrow transplant conditioning must also be considered at risk.’
    • ‘Food irradiation - unpopular in the past - is starting to gain more acceptance.’
    • ‘After a prolonged period of dark growth, light irradiation does not elicit pigmentation.’
    • ‘But he stressed that irradiation is actually a process which should make some products safer.’
    • ‘Currently, the two most common methods of sterilization are ethylene oxide treatment and gamma irradiation.’
    • ‘Of the 21 patients alive at the end of the follow-up, 17 had received postoperative irradiation.’
    • ‘At no time did the patient undergo cranial irradiation.’
    • ‘Most of the patients who are treated with radiation therapy are treated with external beam irradiation.’
    • ‘I recently finished a paper on food irradiation for my nuclear issues class.’
    • ‘Five days after gamma irradiation seedlings were stained for the presence of GUS.’
    • ‘Cranial irradiation for tumors of the central nervous system can result in growth hormone deficiency.’
    • ‘They also might be considered as anticancer drug candidates in combination with UVA irradiation.’
    • ‘UV-B irradiation was performed either in the absence of other light sources or in the presence of white light.’
    • ‘The quantification of these compounds was performed by chromatography before and after laser irradiation.’
    • ‘Much attention has been paid to what kind of DNA damage caused by UVA irradiation is responsible for the genotoxicity.’
    • ‘Neutron or ion irradiation hardens the material but not enough to prevent use in nuclear reactors.’
    • ‘The use of postoperative adjuvant irradiation in breast conservation and after mastectomy is increasing.’
    • ‘Under visible light irradiation, much longer durations were necessary to achieve similar absorbance decreases.’
    • ‘Approximately 80 % of cells survived the ultraviolet irradiation.’
    light, lighting, radiance, gleam, glitter, brilliance, glow, glare, dazzle, flash, shimmer
    View synonyms
  • 2Optics
    The apparent extension of the edges of an illuminated object seen against a dark background.