Definition of foreign body in US English:

foreign body


  • An object or piece of extraneous matter that has entered the body by accident or design.

    ‘the intrauterine device is a foreign body’
    figurative ‘an idea from outside the department is viewed as a foreign body’
    • ‘That is, in spite of the importance of English to international relations, it remains a foreign body, and one that exists in school at the expense of other subjects.’
    • ‘The foreign body that it cannot effectively assimilate is European modernity.’
    • ‘If there is a superficial foreign body inside the eye as a result of a glass/iron bit getting lodged in the eye, it needs to be removed as soon as possible.’
    • ‘Eye injuries may be caused by irritants such as sand, dirt, or other foreign bodies on the eye's surface.’
    • ‘The first was to repair the eye immediately after the injury and the second was to remove the foreign body and re-attach the retina.’
    • ‘The cause of the accident was a foreign body which got jammed between the brake caliper and the inside of a wheel rim and machined a groove into the rim which caused an immediate failure.’
    • ‘An ultra-sound scan revealed the presence of a foreign body in her thigh muscle.’
    • ‘Nature has provided glands that produce wax to keep foreign bodies like insects from entering the ear.’
    • ‘It is the foreign body that puts the body to work.’
    • ‘A foreign body stuck in a pipe covers most situations.’
    • ‘They're simply there to stop foreign bodies going into the lungs.’
    • ‘The drawing action of castor oil is also very useful for removing splinters or other foreign bodies from the eye, allowing the offending bodies to be removed along natural channels.’
    • ‘The DNA then starts making proteins that are recognised by the body as foreign bodies and attacked.’
    • ‘The body encounters myriad foreign bodies via the mucus lining of air passages.’
    • ‘This could mean the end of the rejection problem - when the body rejects a foreign body after transplantation.’
    • ‘The foreign body was removed through another surgery.’
    • ‘A general anaesthetic can interfere with the body's natural cough reflex, which normally helps prevent foreign bodies entering the breathing system.’
    • ‘Remember, your animal suffering a gastrointestinal foreign body does not constitute a lack of parenting or care.’
    • ‘They are treated as foreign bodies that have to be extirpated from the body Hispanic.’
    • ‘Come on, Bryan - you must have a foreign body stuck in your pipeline!’
    contaminant, adulterant, pollutant
    View synonyms


foreign body

/ˈfôrən ˈbädē/