Definition of Rous sarcoma in US English:

Rous sarcoma


  • A form of tumor, caused by an RNA virus, which affects birds, particularly poultry.

    • ‘The doctor says I should rest up and be thankful that it wasn't Rous sarcoma virus - there's a nasty lot of it about at the moment.’
    • ‘The first tumor-causing virus identified in any organism was the Rous sarcoma virus in chickens.’
    • ‘They started by studying the Rous sarcoma virus, named after Peyton Rous.’


Early 20th century: named after Francis P. Rous (1879–1970), American physician.


Rous sarcoma

/ˌrous särˈkōmə/