definitions

arteriole

[ ahr-teer-ee-ohl ]
/ ɑrˈtɪər iˌoʊl /
SEE MORE SYNONYMS FOR arteriole ON THESAURUS.COM

noun

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

RELATED WORDS

artery, vein, capillary, metarteriole, venule

Nearby words

arteriogram, arteriography, arteriola, arteriolae rectae, arteriolar nephrosclerosis, arteriole, arteriolith, arteriolitis, arteriolo-, arteriolonecrosis, arteriolonephrosclerosis

Origin of arteriole

1830–40; < New Latin artēriola, equivalent to Latin artēri(a) artery + -ola -ole1
Related formsar·te·ri·o·lar, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for arteriole

arteriole

/ (ɑːˈtɪərɪˌəʊl) /

noun

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

Word Origin for arteriole

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

arteriole

n.

"small artery," by 1808, from Modern Latin arteriola, diminutive of arteria (see artery).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for arteriole

arteriole

[ är-tîr′ē-ōl′ ]

n.

A minute artery, especially a terminal artery continuous with the capillary network.
Related formsar•te′ri•o′lar (-ō′lər, -ə-lər) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for arteriole

arteriole

[ är-tîr′ē-ōl′ ]

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.