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collateral circulation

American

noun

circulation of blood through a network of minor vessels that become enlarged and joined with adjacent vessels when a major vein or artery is impaired, as by obstruction.

Etymology

Origin of collateral circulation

First recorded in 1875–80

Example Sentences

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collateral circulation

The only blood flow to his arm was coming from collateral circulation, from minor blood vessels and capillaries in the skin.

From Time Magazine Archive

In cases like the President's, the collateral circulation has to develop after the attack.

From Time Magazine Archive

If it constricts slowly for months, the heart brings into play its self-repair system and develops collateral circulation, i.e., nearby branches enlarge to carry more blood to neighboring parts of the heart muscle.

From Time Magazine Archive

At the same time, the heart is developing collateral circulation.

From Time Magazine Archive

The arteries of the brain are end arteries, hence there is no chance for collateral circulation.

From Arteriosclerosis and Hypertension: with Chapters on Blood Pressure, 3rd Edition. by Warfield, Louis Marshall

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023