tuatara

American  

[too-uh-tahr-uh] / ˌtu əˈtɑr ə /

Also tuatera

noun

1. a large, primarily nocturnal, lizardlike reptile, Sphenodon punctatum, of islands near the coast of New Zealand: the only surviving rhynchocephalian.

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tuatara British  

/ ˌtuːəˈtɑːrə /

noun

1. a greenish-grey lizard-like rhynchocephalian reptile, Sphenodon punctatus , occurring only on certain small islands near New Zealand: it is the sole surviving member of a group common in Mesozoic times

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Etymology

Origin of tuatara

1810–20; < Maori, equivalent to tua dorsal + tara spine

Example Sentences

Today, lizards and their close relatives, including snakes and the distinctive tuatara from New Zealand, form the most diverse group of land vertebrates.

From Science Daily • Nov. 30, 2025

Along with the mata mata turtle and reptile known as the tuatara, among the other animals studied were caecilians, a slithery type of amphibian with an outward appearance akin to snakes.

From Salon • Nov. 9, 2022

The creatures included 50 turtles, a tuatara, a lungfish and a caecilian.

From BBC • Oct. 25, 2022

Squamates’ slower pace resulted in a more stable history, followed by a later burst of diversity when tuatara relatives were already on their downturn.

From Scientific American • Mar. 23, 2022

“Yeah, he believes Malik is going to be able to identify some factor in tuatara blood that makes them age slowly, and then he’s going to ‘cure death,’” Davis said, using air quotes.

From "Turtles All the Way Down" by John Green