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[ahy-lit] /ˈaɪ lɪt/
a very small island.
Anatomy. situated in or pertaining to the islet of Langerhans:
islet cells.
Origin of islet
1530-40; < Middle French islette. See isle, -et
Related forms
isleted, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for islet
  • Many diabetes researchers insist that a cure lies instead in research on stem cells and islet cell transplants.
  • We stayed at a small resort that was situated on a small islet in the inner lagoon.
  • Researchers have made progress recently in human-to-human islet cell transplantation.
  • Soon the symptoms became more severe, and tests found an neuroendocrine islet cell tumor in the pancreas.
  • By then, many of the body's insulin-producing islet cells have been destroyed.
  • Tumors can also occur in these cells, but they are called islet cell tumors.
  • Embryonic stem cells, which can potentially be turned into any type of cell in the body, could be a source of islet cells.
  • The cause was islet cell carcinoma of the pancreas, his family said.
  • Plans were in store to built a full-service spa on its one islet.
  • The islet itself was trailing a wake from the current whipping around it.
British Dictionary definitions for islet


a small island
Word Origin
C16: from Old French islette; see isle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for islet

1530s, from Middle French islette (Modern French îlette), diminutive of isle (see isle).

Online Etymology Dictionary, © 2010 Douglas Harper
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islet in Medicine

islet is·let (ī'lĭt)
A small island.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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