- Anatomy. any of the smallest branches of an artery, terminating in capillaries.
Origin of arteriole
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- anatomy any of the small subdivisions of an artery that form thin-walled vessels ending in capillaries
C19: from New Latin arteriola, from Latin artēria artery
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
Word Origin and History for arteriole
"small artery," by 1808, from Modern Latin arteriola, diminutive of arteria (see artery).
Online Etymology Dictionary, © 2010 Douglas Harper
- A minute artery, especially a terminal artery continuous with the capillary network.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- Any of the smaller branches of an artery, especially one that connects with a capillary.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.