collateral circulation


: circulation of blood established through enlargement of minor vessels and anastomosis of vessels with those of adjacent parts when a major vein or artery is functionally impaired (as by obstruction)
also : the modified vessels through which such circulation occurs

Dictionary Entries Near collateral circulation

Cite this Entry

“Collateral circulation.” Medical Dictionary, Merriam-Webster, Accessed 26 Feb. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!