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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

Blood capillaries are found beneath the dermis, and are linked to an arteriole and a venule.

From Textbooks • Jan. 1, 2015

Each metarteriole arises from a terminal arteriole and branches to supply blood to a capillary bed that may consist of 10–100 capillaries.

From Textbooks • Jun. 19, 2013

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

From Textbooks • Jun. 19, 2013

When this sudden systemic arteriole spasm extends to the coronary vessels in a heart whose walls are diseased, a fatal attack of angina with the heart full of blood may be induced.

From New, Old, and Forgotten Remedies: Papers by Many Writers by Anshutz, Edward Pollock

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.