ORDER RHYNCHOCEPHALIA(noun) Did you mean: Rhymes Also try: orderDefinitions There is 1 meaning of the phrase Order Rhynchocephalia. Order Rhynchocephalia - as a noun Tuataras; extinct forms from middle triassic Synonyms (Exact Relations)rhynchocephaliaWord Variations & RelationsStarts O Starts OR Starts ORD Starts ORDE Ends A Ends IA Ends LIA Ends ALIA Starts O & ends A Starts OR & ends A Starts O & ends IA A-Z Proximitiesordalium 11ordaliums 12ordeal 7ordeals 8order 6 Order Rhynchocephalia order-chenopodialesorderable 12ordered 9orderer 8orderers 9