oral poliovirus vaccine oral phase • oral presentation · · · Info · Definitions · Characters · · oral poliovirus vaccine · · Text Common · · Latin · · Scripts 23 · · Length 8 · · Syllables Definitions · · · (noun) an oral vaccine (containing live but weakened poliovirus) that is given to provide immunity to poliomyelitis. Synonyms: Sabin vaccine, oral poliovirus vaccine, OPV, trivalent live oral poliomyelitis vaccine, TOPV. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C 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 u latin small letter u U+0075 v latin small letter v U+0076