islet

noun

is·​let ˈī-lət How to pronounce islet (audio)
Synonyms of isletnext
1
: a little island
2

Examples of islet in a Sentence

landed the boat on a tiny islet that we had all to ourselves
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.
When transplanted into diabetic mice, the islet organoids rapidly vascularized and restored normal blood glucose levels for the duration of the experiment. Neetika Walter, Interesting Engineering, 1 Jan. 2026 The resort occupies its own private motu (islet) just 20 minutes by speedboat from Bora Bora’s airport. Terry Ward, Condé Nast Traveler, 31 Dec. 2025 Last month, Japanese Defense Minister Shinjiro Koizumi confirmed plans to deploy anti-air missiles on Yonaguni, a Ryukyu islet just 60 miles from Taiwan’s east coast. Micah McCartney, MSNBC Newsweek, 9 Dec. 2025 The island is one of the Cayos Cochinos, photogenic coral islets that form part of the Mesoamerican Barrier Reef System. Qin Xie, Travel + Leisure, 29 Nov. 2025 See All Example Sentences for islet

Word History

First Known Use

1538, in the meaning defined at sense 1

Time Traveler
The first known use of islet was in 1538

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Cite this Entry

“Islet.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/islet. Accessed 8 Jan. 2026.

Kids Definition

islet

noun
is·​let ˈī-lət How to pronounce islet (audio)
1
: a little island
2

Medical Definition

islet

noun
is·​let ˈī-lət How to pronounce islet (audio)
: a small isolated mass of one type of tissue within a different type
specifically : islet of langerhans

More from Merriam-Webster on islet

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