Home › Words › M › multinucleosismultinucleosismultinucleosis means synonym of polynucleosis.Among words judged in Lexicurio's Arena, multinucleosis ranks #36,097 of 42,762 for Qualifying.EtymologyFrom multi- + nucleo- + -osis.nounSynonym of polynucleosis.Definitions & examples from Wiktionary (CC BY-SA 3.0).