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Showing results for arteriole. Search instead for arteriolar.
Synonyms

arteriole

American  
[ahr-teer-ee-ohl] / ɑrˈtɪər iˌoʊl /

noun

  1. Anatomy. any of the smallest branches of an artery, terminating in capillaries.

arteriole British  
/ ɑːˈtɪərɪˌəʊl /

noun

  1. anatomy any of the small subdivisions of an artery that form thin-walled vessels ending in capillaries

"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
arteriole Scientific  
/ är-tîr′ē-ōl′ /

  1. Any of the smaller branches of an artery, especially one that connects with a capillary.

Other Word Forms

  • arteriolar adjective

Etymology

Origin of arteriole

1830–40; < New Latin artēriola, equivalent to Latin artēri ( a ) artery + -ola -ole 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

They also reduced heart muscle growth and scaring while prompting arteriole formation and growth.

From Science Daily • Mar. 6, 2024

In addition to muscle and connective tissue to support its structure, each villus contains a capillary bed composed of one arteriole and one venule, as well as a lymphatic capillary called a lacteal.

From Textbooks • Jun. 19, 2013

When it is, an arteriole can expand by as much as 150 percent.

From Textbooks • Jun. 19, 2013

The white pulp surrounds a central arteriole and consists of germinal centers of dividing B cells surrounded by T cells and accessory cells, including macrophages and dendritic cells.

From Textbooks • Jun. 19, 2013

Such a deposition of layer upon layer of cells in an arteriole and the resulting fibrosis leads to the condition of disappearance of the lumen of the vessel, endarteritis obliterans.

From Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. by Warfield, Louis Marshall

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.