6 results for: arteries

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Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

ar·ter·y

Audio Help [ahr-tuh-ree] Pronunciation Key

–noun, plural -ter·ies.

1.	Anatomy. a blood vessel that conveys blood from the heart to any part of the body.

2.	a main channel or highway, esp. of a connected system with many branches.

[Origin: 1350–1400; ME < L artéria < Gk: windpipe, artery. See aorta

]

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

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Encyclopædia Britannica, Inc.
arteries

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American Heritage Dictionary - Cite This Source - Share This

ar·ter·y Audio Help (är'tə-rē) Pronunciation Key
n. pl. ar·ter·ies

Anatomy Any of the muscular elastic tubes that form a branching system and that carry blood away from the heart to the cells, tissues, and organs of the body.
A major route of transportation into which local routes flow. See Synonyms at way.

[Middle English arterie, from Latin artēria, from Greek artēriā, windpipe, artery; see wer-¹ in Indo-European roots.]

Word History: The changed meaning of the word artery provides a glimpse into the history of medical science. The word is derived from the ancient Greek artēriā, a word originally applied to any of the vessels that emanated from the chest cavity, including arteries, veins, and the bronchial tubes. The difference in the functions of these vessels was not yet known; because they were all empty in cadavers, early anatomists supposed they all carried air. As medical knowledge advanced, however, students of anatomy realized that arteries carry blood and only the windpipe and bronchial tubes carry air. To specify the windpipe, they coined the phrase artēriā trakheia, "rough artery," referring to its rough cartilaginous structure. The adjective trakheia, "rough," entered modern English as trachea, the current medical term for the windpipe.

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

The American Heritage Science Dictionary - Cite This Source - Share This

artery Audio Help (är'tə-rē) Pronunciation Key
Any of the blood vessels that carry oxygenated blood away from the heart to the body's cells, tissues, and organs. Arteries are flexible, elastic tubes with muscular walls that expand and contract to pump blood through the body.

arterial adjective (är-tîr'ē-əl)

The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

American Heritage New Dictionary of Cultural Literacy, Third Edition - Cite This Source - Share This
arteries

Blood vessels that carry blood away from the heart and to the body tissues. (Compare veins; see circulatory system.)

[Chapter:] Medicine and Health

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Arteries

Ar"ter*y\, n.; pl. Arteries. [L. arteria windpipe, artery, Gr. ?.]

1. The trachea or windpipe. [Obs.] "Under the artery, or windpipe, is the mouth of the stomach." --Holland.

2. (Anat.) One of the vessels or tubes which carry either venous or arterial blood from the heart. They have tricker and more muscular walls than veins, and are connected with them by capillaries.

Note: In man and other mammals, the arteries which contain arterialized blood receive it from the left ventricle of the heart through the aorta. See Aorta. The pulmonary artery conveys the venous blood from the right ventricle to the lungs, whence the arterialized blood is returned through the pulmonary veins.

3. Hence: Any continuous or ramified channel of communication; as, arteries of trade or commerce.

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