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a learned borrowing from Greek meaning “vessel,” “container,” used in the formation of compound words: angiosperm.
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Also especially before a vowel, angi-.

Origin of angio-

<Greek, combining form representing angeîon, equivalent to áng(os) vessel, vat, shell + -eion diminutive suffix
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021


What does angio- mean?

Angio- is a combining form used like a prefix meaning “vessel” or “container.” It is used in medical and scientific terms. In anatomy, angio- specifically refers to blood and lymphatic vessels. In botany, angio- specifically refer to seed vessels.

Angio- comes from the Greek angeîon, meaning “vessel, vat, shell.”

What are variants of angio-?

When combined with words or word elements that begin with a vowel, angio- becomes angi-, as in angiectomy.

Examples of angio-

One example of a medical term that features the combining form angio- is angiotomy, “incision into a blood vessel.”

The first part of the word, angio-, means “blood vessel,” as we have seen. The second part of the word, -tomy, is a combining form meaning “incision.” Angiotomy literally translates to “vessel incision.”

What are some words that use the combining form angio-?

What are some other forms that angio- may be commonly confused with?

Break it down!

The combining form -lith means “stone,” used in medicine for a hard, solid mass that develops in the body. In what general part of the body does an angiolith form?

How to use angio- in a sentence

  • The angio-sarcomas are those in which blood vessels form a prominent element in the structure of the tumour.

    Manual of Surgery|Alexis Thomson and Alexander Miles

British Dictionary definitions for angio-


before a vowel angi-

combining form
indicating a blood or lymph vessel; seed vesselangiology; angiosperm; angioma

Word Origin for angio-

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

Medical definitions for angio-


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.