What is another word for foreign body?
Pronunciation: [fˈɒɹən bˈɒdi] (IPA) 
Foreign body refers to an object that is present inside the body but does not belong in the particular area or organ. Synonyms for foreign body include alien object, extraneous material, abnormal substance, or inadvertent item. Other similar terms that can be used include intruder, trespasser, or invader. In the medical field, healthcare professionals may use the term encroachment, which refers to structures in the body that have grown or migrated out of their usual location. In the manufacturing industry, the term contamination is often used to refer to foreign bodies, which may be physical or chemical and can cause damage to the product or user. Irrespective of the context, foreign bodies always constitute a risk that requires immediate attention.
