Home › Words › R › rhabdosphincterrhabdosphincterrhabdosphincter means A sphincter consisting of striated muscle fibers.Among words judged in Lexicurio's Arena, rhabdosphincter ranks #27,059 of 42,749 for Qualifying.EtymologyFrom rhabdo- + sphincter.nounA sphincter consisting of striated muscle fibers.Definitions & examples from Wiktionary (CC BY-SA 3.0).