Macleod
(redirected from John J)Also found in: Dictionary, Thesaurus, Encyclopedia.
Mac·leod
(mă-klowd'),Roderick, Scottish physician, 1795-1852. See: Macleod rheumatism.
Mac·Leod
(mă-klowd'),William Mathieson, British physician, 1911-1977. See: Macleod syndrome, Swyer-James-MacLeod syndrome.