Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

sphenodon

play
noun sphen·odon \ˈsfē-nə-ˌdän, ˈsfe-\

Definition of sphenodon

  1. :  tuatara

sphenodont play \-ˌdänt\ adjective


Origin of sphenodon

New Latin, genus name, from Greek sphēn wedge + odōn, odous tooth — more at tooth


First Known Use: 1878


Seen and Heard

What made you want to look up sphenodon? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

the Celtic May Day festival

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

maudlin oily prompt angry
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ