Definition of microorganism in English:

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Pronunciation: /mʌɪkrəʊˈɔːɡ(ə)nɪz(ə)m/


A microscopic organism, especially a bacterium, virus, or fungus.
Example sentences
  • Brain abscess is a serious disorder that occurs when micro-organisms such as bacteria or fungi get into the brain, causing inflammation.
  • At the same time bacteria, viruses and other disease-causing micro-organisms are also becoming more active.
  • Many cases of food poisoning are caused by micro-organisms, including bacteria, viruses and moulds.
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