tuatara
Concise Oxford English Dictionary © 2008 Oxford University Press:
tuatara /ˌtuːəˈtɑːrə/
▶noun a burrowing lizard-like reptile with a crest of soft spines, now confined to some small islands off New Zealand. [Sphenodon punctatum.]
– origin C19: from Maori.
'tuatara' also found in these Oxford entries:

