peyton rous peyton • peytrel · · · Info · Definitions · Characters · · peyton rous · · Text Common · · Latin · · Scripts 11 · · Length 4 · · Syllables Definitions · · · (noun) United States pathologist who discovered viruses that cause tumors (1879-1970). Synonyms: Rous, Peyton Rous, Francis Peyton Rous. · · Noun Definition 1 Characters · · space U+0020 e latin small letter e U+0065 n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075 y latin small letter y U+0079