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1. Dictionary

   cir·cu·la·tion

   /ˌsərkyəˈlāSH(ə)n/

   noun

   • 1. movement to and fro or around something, especially that of fluid in a closed system: "an extra pump for good water circulation" Similar flowmotionmovementcoursepassage
   • ▪ the continuous motion by which the blood travels through all parts of the body under the action of the heart: "three 20-minute sessions a week which make you breathe a bit harder can improve circulation"
   • ▪ the movement of sap through a plant.
   • 2. the public availability or knowledge of something: "his music has achieved wide circulation" Similar disseminationspreadingcommunicationtransmissionmaking knownputting aroundbroadcastingpublicationpropagationpromulgationdistributiondiffusionissuance
   • ▪ the movement, exchange, or availability of money in a country: "the new coins go into circulation today"
   • ▪ the number of copies sold of a newspaper or magazine: "the magazine had a large circulation" Similar distributionreadershipsales figures

   Word Origin late Middle English (denoting continuous distillation of a liquid): from Latin circulatio(n-), from the verb circulare (see circulate).

   Scrabble Points: 15

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2. www.dictionary.com › browse › circulationCIRCULATION Definition & Meaning - Dictionary.com

   www.dictionary.com › browse › circulation

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   The flow of fluid, especially blood, through the tissues of an organism to allow for the transport and exchange of blood gases, nutrients, and waste products. In vertebrates, the circulation of blood to the tissues and back to the heart is caused by the pumping action of the heart.

3. www.vocabulary.com › dictionary › circulationCirculation - Definition, Meaning & Synonyms - Vocabulary.com

   www.vocabulary.com › dictionary › circulation

   The word circulation refers to the movement of blood through your body's blood vessels and heart. It can also mean free movement in a more general sense, as in the circulation of news, money, or even library books.

4. www.collinsdictionary.com › dictionary › english-wordCIRCULATION - Find out everything about this English word |...

   www.collinsdictionary.com › dictionary › english-word

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   All you need to know about "CIRCULATION" in one place: definitions, pronunciations, synonyms, grammar insights, collocations, examples, and translations.

5. byjus.com › question-answer › define-blood-circulationDefine Blood circulation - BYJU'S

   byjus.com › question-answer › define-blood-circulation

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   Blood circulation is the circulation of blood which carries various substances including gases throughout the body. Circulatory System: The circulatory system is responsible for transport of various substances in human beings. It is composed of the heart, arteries, veins and blood capillaries.

6. en.wikipedia.org › wiki › Pulmonary_circulationPulmonary circulation - Wikipedia

   en.wikipedia.org › wiki › Pulmonary_circulation

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   The blood vessels of the pulmonary circulation are the pulmonary arteries and the pulmonary veins. A separate circulatory circuit known as the bronchial circulation supplies oxygenated blood to the tissue of the larger airways of the lung.