circulation

noun

cir·​cu·​la·​tion ˌsər-kyə-ˈlā-shən 

1

: orderly movement through a circuit

especially : the movement of blood through the vessels of the body induced by the pumping action of the heart

2

: flow

3

a

: passage or transmission from person to person or place to place

especially : the interchange of currency

coins in circulation

b

: the extent of dissemination: such as

(1)

: the average number of copies of a publication sold over a given period

(2)

: the total number of items borrowed from a library

Examples of circulation in a Sentence

He has bad circulation in his legs.

The drug improves blood circulation.

The attic has poor air circulation.

the circulation of ocean waters

Let's open the windows to get some circulation in here.

This memo is not meant for circulation.

The coins have recently entered circulation.

Recent Examples on the Web

This may include sealing gaps in the foundation, walls and floors to reduce radon entry, adding ventilation to crawl spaces or beneath foundations to prevent radon buildup and improving air circulation inside the main home. —Michael Gfoeller and David H. Rundell, Newsweek, 16 Jan. 2025

The wellness facilities will also include a massage room that offers AI robotic treatments for recovery by reducing muscle tension and improving circulation. —Jim Dobson, Forbes, 13 Jan. 2025

Mineral baths have been shown to reduce stress, lessen joint pain, improve circulation, and naturally detoxify. —Megan Michelson, Outside Online, 13 Jan. 2025

Regular physical activity can help support a healthy weight and improve blood circulation in the legs and body. —Laura Schober, Health, 12 Jan. 2025

Word History

First Known Use

1535, in the meaning defined at sense 1

Phrases Containing circulation

• back in/into circulation
• in circulation
• out of circulation
• pulmonary circulation

Kids Definition

circulation

noun

cir·​cu·​la·​tion ˌsər-kyə-ˈlā-shən 

1

: orderly movement through a circuit

especially : the movement of blood through the vessels of the body caused by the pumping action of the heart

2

a

: passage from person to person or place to place

coins in circulation

b

: the average number of copies (as of a newspaper) sold over a given period

Medical Definition

circulation

noun

cir·​cu·​la·​tion ˌsər-kyə-ˈlā-shən 

: the movement of blood through the vessels of the body that is induced by the pumping action of the heart and serves to distribute nutrients and oxygen to and remove waste products from all parts of the body see pulmonary circulation, systemic circulation