Definition of peyton rous in English English dictionary
{i} Francis Peyton Rous (1879-1970), United States pathologist who won the Nobel prize in Physiology or Medicine in 1966 for discovering viruses that cause tumors
{i} Peyton Rous (1879-1970), United States pathologist who won the Nobel prize in Physiology or Medicine in 1966 for discovering viruses that cause tumors