sphenodon

== English == === Etymology === From the genus name Sphenodon. === Noun === sphenodon (plural sphenodons) The tuatara. Any of the other extinct reptiles of the Sphenodontidae family. ==== Related terms ==== sphenodont === References === “sphenodon”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC. === Further reading === sphenodon on Wikipedia.Wikipedia sphenodon on Wikispecies.Wikispecies