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a learned borrowing from Greek meaning “vessel,” “container,” used in the formation of compound words:
Also, especially before a vowel, angi-.
Origin of angio-
< Greek, combining form representing angeîon, equivalent to áng(os) vessel, vat, shell + -eion diminutive suffix Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for angio-


combining form
indicating a blood or lymph vessel; seed vessel: angiology, angiosperm, angioma
Word Origin
from Greek angeion vessel
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 angio-

before verbs angi-, word-forming element now usually meaning "covered or enclosed by a seed or blood vessel," from Latinized form of Greek angeion "a vessel, receptacle," diminutive of angos "chest, box," of unknown origin.

Online Etymology Dictionary, © 2010 Douglas Harper
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angio- in Medicine

angio- or angi-
Blood and lymph vessel: angiography.

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