1
: any of a family (Testudinidae) of terrestrial turtles
broadly : turtle
2
: someone or something regarded as slow or laggard

Examples of tortoise in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
There were no cosmonauts aboard, but there were several smaller vertebrates — including the first two tortoises to ever go to space! — Tariq Malik, Space.com, 15 Sep. 2026 Galapagos tortoises live so long that one of them hobbling around today could have encountered Charles Darwin in 1835. — Venki Ramakrishnan, Scientific American, 15 Sep. 2026 McGuire rediscovered the original diagram during a visit to founding chair Rick Ridgeway’s California tortoise sanctuary. — Jasmin Malik Chua, Footwear News, 15 Sep. 2026 The crew took small tortoises aboard the ship to keep as pets. — Michele Metych Britannica Editors Sep. 14, Encyclopedia Britannica, 14 Sep. 2026 See All Example Sentences for tortoise

Word History

Etymology

Middle English tortu, tortuse, from Anglo-French tortue — more at turtle

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of tortoise was in the 14th century

Browse Nearby Words

Cite this Entry

“Tortoise.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tortoise. Accessed 25 Sep. 2026.

Kids Definition

: turtle entry 2
especially : a land-dwelling turtle

More from Merriam-Webster on tortoise

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster