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1.1Expose (food) to gamma rays to kill microorganisms.
‘Frying, baking, canning, drying, irradiating - these all kill enzymes.’
‘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.’
‘Seeds were imbibed in water for 24 hr and then gamma irradiated at 10 krad.’
‘Cobalt 60 and Cesium 137 are the radiation sources used to irradiate food.’
‘The U.S. Department of Agriculture last year approved the use of irradiated ground beef in the National School Lunch Program.’
‘Food can be irradiated through a sealed container, sterilizing the contents.’
‘I've heard that some foods are now being irradiated.’
‘Seeds of wild type and uvh1-2 were gamma irradiated at 10 krad.’
‘In fact, American astronauts aboard the Space Shuttle have eaten irradiated beef, pork and smoked turkey.’
‘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.’
‘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.’
‘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.’
‘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.’
‘When food is irradiated, a concentrated source of short ionizing energy waves is used.’
‘What about irradiating meat to kill germs (e.coli, etc.)?’
‘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.
‘happiness filled her, irradiating her whole face’
‘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
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’).