Definition of irradiate in US English:

irradiate

verb

[with object]
  • 1Expose to radiation.

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

    ‘sunlight streamed down through stained glass, irradiating the faces of family and friends’
    • ‘The TV irradiates the apartment with a ghostly blue light.’
    • ‘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.’
    illuminate, light up, light, brighten, cast light upon, throw light on, shine on, flood with light
    View synonyms

Origin

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’).

Pronunciation

irradiate

/iˈrādēˌāt//ɪˈreɪdiˌeɪt/