Definition of irradiate in English:



  • 1Expose (someone or something) to radiation.

    • ‘The cells were irradiated with UVB, and the medium was reapplied to the cells.’
    • ‘Apparently the US Army spent twenty years trying to make a dirty bomb and they gave up, because they couldn't get it to irradiate anyone.’
    • ‘The cells are then irradiated with the laser and the cancer cells are selectively destroyed.’
    • ‘In LPP, a metal tape target is irradiated with a high-energy laser beam to produce an x-ray-emitting plasma.’
    • ‘The samples were irradiated at the Radiation Center of Oregon State University, USA.’
    • ‘For linkage analysis, self-pollinated progeny of the two plants were UVB irradiated for F 4 progeny testing.’
    • ‘The mixtures on ice were irradiated with UVA.’
    • ‘The suspension was then irradiated with increasing UVA doses under gentle shaking in a controlled temperature bath.’
    • ‘Mice were irradiated unrestrained in their boxes, with the wire cage tops removed.’
    • ‘Protein irradiated in the absence of sensitizers did not show any additional bands on the gel.’
    • ‘A2E and cholesterol were incorporated into lipid micelles and irradiated with blue light.’
    • ‘Depending on which elements are being tested for, the samples are irradiated with energetic neutrons.’
    • ‘Then, using an electron accelerator, the researchers irradiated the fragments with electron beams.’
    • ‘Cultures were immediately irradiated with a UV dose of 27 J / m.’
    • ‘The cells were then irradiated with white light as described previously.’
    • ‘Cells were blocked in G1 phase by factor treatment and were UV irradiated.’
    • ‘Cells were then immediately irradiated with the requisite light dose.’
    • ‘The samples were irradiated at McMaster reactor for 50 hours.’
    • ‘The samples of cellular suspension were irradiated in special glass sample cells.’
    treat with radiation, expose to radiation, x-ray
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    1. 1.1Expose (food) to gamma rays to kill microorganisms.
      • ‘What about irradiating meat to kill germs (e.coli, etc.)?’
      • ‘Seeds were imbibed in water for 24 hr and then gamma irradiated at 10 krad.’
      • ‘The U.S. Department of Agriculture last year approved the use of irradiated ground beef in the National School Lunch Program.’
      • ‘For example, the industry is still fighting mandatory labels on the irradiated meat products that may appear in supermarkets this summer.’
      • ‘Now even tofu is likely to be tainted with genetically modified organisms, and your favorite natural tabouli mix may contain irradiated herbs and spices.’
      • ‘When food is irradiated, a concentrated source of short ionizing energy waves is used.’
      • ‘Most herbs and spices from warm countries, common ingredients in supplements, are irradiated to kill any bacteria from insects or birds which might infect them when they are spread out on floors to be dried.’
      • ‘Food can be irradiated through a sealed container, sterilizing the contents.’
      • ‘Frying, baking, canning, drying, irradiating - these all kill enzymes.’
      • ‘I've heard that some foods are now being irradiated.’
      • ‘For example, restaurants, schools and hospitals are not required to notify the public if they are serving irradiated foods.’
      • ‘A further concern is a fear that the facility will be used to irradiate food.’
      • ‘Seeds of wild type and uvh1-2 were gamma irradiated at 10 krad.’
      • ‘In Britain, food regulations currently allow only herbs, spices and vegetable seasonings to be irradiated.’
      • ‘Herbs, spices, herbal teas and tropical fruits can now be irradiated under Australian and NZ food guidelines.’
      • ‘There has been talk of evaporative heat and irradiation, but I I doubt New Zealand would accept irradiated fruit.’
      • ‘One hundred plump seeds were irradiated with 35 krad gamma rays.’
      • ‘In fact, American astronauts aboard the Space Shuttle have eaten irradiated beef, pork and smoked turkey.’
      • ‘Levels of the carcinogen benzene in irradiated beef were found to be some ten-fold higher than cooked beef.’
      • ‘Cobalt 60 and Cesium 137 are the radiation sources used to irradiate food.’
  • 2Illuminate (something) by or as if by shining light on it.

    ‘happiness filled her, irradiating her whole face’
    • ‘For the eternal light, irradiating the human mind, makes a certain active impression on it.’
    • ‘We are called to be salt and light, preserving and irradiating this dark, decaying world with the grace of God in our Lord Jesus Christ.’
    • ‘No sooner had I done this, than, with a bright smile irradiating all his features, he fell back upon his pillow and expired.’
    • ‘The TV irradiates the apartment with a ghostly blue light.’
    illuminate, light up, light, brighten, cast light upon, throw light on, shine on, flood with light
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Late 16th century (in the sense ‘emit rays, shine upon’): from Latin irradiat- shone upon, from the verb irradiare, from in- upon + radiare to shine (from radius ray).