rhynchocephalian

noun rhyn·cho·ce·pha·lian \ˌriŋ-kō-sə-ˈfāl-yən\

Definition of RHYNCHOCEPHALIAN

: any of an order (Rhynchocephalia) of reptiles resembling lizards that includes the tuatara as the only living member

— rhynchocephalian adjective

ultimately from Greek rhynchos beak, snout + kephalē head — more at cephalic

First Known Use: 1886

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