Home › Words › R › rosaceanrosaceanrosacean · noun — A person who has rosacea.Definition from Wiktionary (CC BY-SA 3.0).Among words judged in Lexicurio's Arena, rosacean ranks #30,929 of 43,295 for Qualifying.EtymologyRosacea + -announA person who has rosacea.Definitions & examples from Wiktionary (CC BY-SA 3.0).