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

Rosemary leaf extract stimulates blood circulation in the scalp, which helps the hair follicles grow. —Kiana Murden, Vogue, 18 Dec. 2024

Newspaper circulation plunged, along with advertising. —Shelby Grad, Los Angeles Times, 16 Dec. 2024

Duda, who had a severe case of hypothermia when rescuers found him, is receiving anti-inflammatory medication and blood circulation treatment. —Gil MacIas, People.com, 12 Dec. 2024

Sitting on a plane exacerbates this, because air-pressure changes in the cabin lowers the oxygenation of your blood, which can adversely affect circulation, causing veins (and your legs) to swell. —Jen Murphy, Outside Online, 12 Dec. 2024

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