proto-oncogene protonymphal • protopapas · · · Info · Definitions · Characters · · proto-oncogene · · Text Common · · Latin · · Scripts 14 · · Length 4 · · Syllables Definitions · · · (noun) a normal gene that has the potential to become an oncogene. · · Noun Definition 1 Characters · · - hyphen-minus U+002D c latin small letter c U+0063 e latin small letter e U+0065 g latin small letter g U+0067 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 t latin small letter t U+0074