Definition of infection in English:



  • 1The process of infecting or the state of being infected.

    ‘strict hygiene will limit the risk of infection’
    • ‘It can also help to reduce the inflammation and infection associated with acne.’
    • ‘Two patients developed respiratory infection and expired during the hospital stay.’
    • ‘This reduction was not accompanied by an increased risk of infection.’
    • ‘When possible, urinary catheters should be avoided to minimise the risk of infection.’
    • ‘This patient was treated and did not have any evidence of fungal infection at autopsy.’
    • ‘Vaccination has a role in clusters of meningococcal serogroup C infection.’
    • ‘The critical issue is that the child is protected for the first five years of life when the risk of persistent infection is high.’
    • ‘In children, the major causes of anemia are dietary iron deficiency and infection.’
    • ‘Patients at risk of infection can be identified and treated and colonisation eradicated.’
    • ‘This causes the skin to blister on contact, which can result in infection, sepsis, and death.’
    • ‘The use of combination therapy for HIV infection has strikingly reduced transmission rates.’
    • ‘If your spleen has to be taken out, you may have an increased risk of severe infection.’
    • ‘There is a risk of infection to a middle ear exposed by barotrauma.’
    • ‘Streptococci readily gained access to the blood stream from this site of infection.’
    • ‘The blood supply in this area is much better and the risk of infection therefore much less.’
    • ‘Contact with cats, kittens, cats' faeces, or cats who hunt for food was not a risk factor for infection.’
    • ‘Warming people up before they undergo surgery seems to reduce their risk of wound infection.’
    • ‘The risk of a fatal outcome for the foetus is highest with infection during the second trimester.’
    • ‘Haematogenous spread of infection is very common in this age group and in immuno-compromised patients.’
    • ‘This left both the students and those with whom they came into contact at higher risk of meningococcal infection.’
    contamination, poison
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    1. 1.1 An infectious disease.
      ‘a chest infection’
      • ‘The section above explains what measures you can take to prevent acute middle ear infections and glue ear.’
      • ‘Eventually, they end up in a coma and are likely to die of secondary infections such as pneumonia.’
      • ‘Possible complications include wound and chest infections and abnormal heart rhythms.’
      • ‘The prostate gland is just below the bladder, and infections can pass both ways along the urethra.’
      • ‘There are immunisations for several of the infections that can cause pneumonia.’
      • ‘Most chest infections are usually caused by germs such as bacteria or viruses.’
      • ‘He was also interested in the contribution of viral infections to chronic fatigue syndrome.’
      • ‘Fungal skin infections are divided into groups depending on what type of organism is involved.’
      • ‘Anaemia, an overactive thyroid gland and infections can also cause heart failure.’
      • ‘Most bacterial infections can be treated with one or a couple of drugs in a matter of days or a week or so.’
      • ‘The rate of shedding is much lower for infections caused by herpes simplex virus type 1.’
      • ‘If the virus is cleared with treatment, you are not immune to future infections with hepatitis C.’
      • ‘Rarely, some children develop secondary infections such as an ear infection or pneumonia.’
      • ‘This is roughly equal to the total number of HIV infections in the world today.’
      • ‘Most requests were from people whose work or leisure activities put them at potential risk of this infection.’
      • ‘Do you think the smoking is connected to these chest infections you've had?’
      • ‘These infections can be passed from one person to another during intimate physical contact.’
      • ‘Fungal nail infections can be treated with antifungal nail paints or tablets such as terbinafine.’
      • ‘There are a number of causes of meningitis, including viral and bacterial infections.’
      • ‘When they do happen, they are similar to other viral infections such as glandular fever.’
      disease, virus, contagion
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    2. 1.2Computing The presence of a virus in, or its introduction into, a computer system.
      • ‘Users are advised to use personal firewalls and anti-virus defences to defend against infection.’
      • ‘In other words don't open suspect attachments, if you want to avoid infection from SirCam.’
      • ‘We are our own worst enemies when it comes to infection with computer viruses, but lessons do seem to be being learned.’
      • ‘NTL hopes to shepherd users with virus infection to special websites to help them clean their computer.’
      • ‘Once your system is patched you should update your antivirus software and run it to detect and remove virus infection.’


Late Middle English: from late Latin infectio(n-), from Latin inficere ‘dip in, taint’ (see infect).