English English Wikipedia has an article on:Proteus syndromeWikipedia Etymology Named after the Greek sea-god Proteus, who could change his shape. Noun Proteus syndrome (uncountable) (pathology) A congenital disorder that causes skin overgrowth and atypical bone development, often accompanied by tumors. Translations congenital disorder Finnish: Proteus-syndrooma Wikiwand - on Seamless Wikipedia browsing. On steroids.