Home › Words › P › peginterferonpeginterferonpeginterferon means A pegylated interferon.Among words judged in Lexicurio's Arena, peginterferon ranks #36,621 of 42,752 for Qualifying.EtymologyFrom peg- + interferon.nounA pegylated interferon.Definitions & examples from Wiktionary (CC BY-SA 3.0).