Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun tuatara
1 sense of tuatara
Sense 1
tuatara, Sphenodon punctatum -- (only extant member of the order Rhynchocephalia of large spiny lizard-like diapsid reptiles of coastal islands off New Zealand)
=> diapsid, diapsid reptile -- (reptile having a pair of openings in the skull behind each eye)