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variant of angio- before a vowel.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022


What does angi- mean?

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

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

Angi- is a variant of angio-, which loses its -o– when combined with words or word elements beginning with vowels.

Want to know more? Read our Words That Use angio- article.

Examples of angi-

An example of a medical term that features the combining form angi- is angiectomy, “excision of a section of a blood vessel.”

The first part of the word, angi-, means “blood vessel” in medical terms. The second part of the word, -ectomy, is a combining form meaning “excision.” Angiectomy literally translates to “vessel excision.”

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

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

Not every term that begins with angi- uses the combining form angi- to mean “vessel.” For example, angina, “any attack of painful spasms characterized by sensations of choking or suffocating,” comes from a different Greek root than angi-. Learn more about the meaning and origin of angina at our entry for the word.

Break it down!

The suffix -itis is used to denote inflammation. With this in mind, what does the medical condition of angiitis involve?

How to use angi- in a sentence

Medical definitions for angi-


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