• Beard's Circulating Water Tank
    Beard's Circulating Water Tank
  • WordNet 3.6
    • n circulation the spread or transmission of something (as news or money) to a wider group or area
    • n circulation the dissemination of copies of periodicals (as newspapers or magazines)
    • n circulation free movement or passage (as of cytoplasm within a cell or sap through a plant) "ocean circulation is an important part of global climate","a fan aids air circulation"
    • n circulation movement through a circuit; especially the movement of blood through the heart and blood vessels
    • n circulation number of copies of a newspaper or magazine that are sold "by increasing its circulation the newspaper hoped to increase its advertising"
    • n circulation (library science) the count of books that are loaned by a library over a specified period
    • ***

Additional illustrations & photos:

The Organs of Circulation The Organs of Circulation

Webster's Revised Unabridged Dictionary
  • Interesting fact: Sports Illustrated has the largest sports magazine circulation
    • Circulation Currency; circulating coin; notes, bills, etc., current for coin.
    • Circulation The act of moving in a circle, or in a course which brings the moving body to the place where its motion began. "This continual circulation of human things."
    • Circulation The act of passing from place to place or person to person; free diffusion; transmission. "The true doctrines of astronomy appear to have had some popular circulation ."
    • Circulation The extent to which anything circulates or is circulated; the measure of diffusion; as, the circulation of a newspaper.
    • Circulation (Physiol) The movement of the blood in the blood-vascular system, by which it is brought into close relations with almost every living elementary constituent. Also, the movement of the sap in the vessels and tissues of plants.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: On October 15, 1794, the first silver dollar coins were released to be circulated to the public
    • n circulation The act of circulating or moving in a circle or circuit; movement in such a manner as to go forth and return to the starting-point: as, the circulation of the blood (see phrases below).
    • n circulation The act or state of being diffused or distributed; the act of passing from point to point or from person to person; diffusion: as, the circulation of sap in a tree; the circulation of money; the circulation of a piece of news.
    • n circulation The extent to which a thing circulates or is diffused or distributed: as, the circulation of the two periodicals was about 300,000 copies.
    • n circulation A repetition of a series of things or events in the same order.
    • n circulation The amount of coin, notes, bills, etc., in actual use as currency: as, the circulation of the national banks.
    • n circulation In chem., the repeated vaporization and condensation of a substance in distillation.
    • n circulation In mathematics, the amount of flow round a closed path or circuit; the line-integral round a closed curve of the component velocity of a fluid along the curve.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: In the early nineteenth century some advertisements claimed that riding the carousel was good for the circulation of blood
    • Circulation the act of moving in a circle: the movement of the blood: the sale of a periodical: the publication of a report or of a book: the money in use at any time in a country
    • ***


  • Robert Collier
    “All motion is cyclic. It circulates to the limits of its possibilities and then returns to its starting point.”
  • Arthur Baer
    Arthur Baer
    “A newspaper is a circulating library with high blood pressure.”
  • Guy Debord
    Guy Debord
    “Tourism, human circulation considered as consumption is fundamentally nothing more than the leisure of going to see what has become banal.”
  • Charles Horace Mayo
    Charles Horace Mayo
    “Worry affects the circulation, the heart, the glands, the whole nervous system. I have never known a man who died from over work, but many who died from doubt.”
  • Logan Pearsall Smith
    “The denunciation of the young is a necessary part of the hygiene of older people, and greatly assists the circulation of their blood.”


Webster's Revised Unabridged Dictionary
L. circulatio,: cf. F. circulation,
Chambers's Twentieth Century Dictionary
L. circulāre, -ātum.


In literature:

To circulate the Holy Scriptures, wholly or in portions, over the widest possible territory.
"George Muller of Bristol" by Arthur T. Pierson
The spray accomplishes two things: It induces an increased circulation and it regulates the humidity.
"Seasoning of Wood" by Joseph B. Wagner
The organs of circulation are the heart and the blood-vessels.
"Alcohol: A Dangerous and Unnecessary Medicine, How and Why" by Martha M. Allen
Therefore, though the sap rises and descends in the plant, it does not appear to undergo a real circulation.
"Conversations on Chemistry, V. 1-2" by Jane Marcet
I had given him one of my wrappers, but his circulation had been badly affected by the intense cold.
"An Explorer's Adventures in Tibet" by A. Henry Savage Landor
I circulated every month about three hundred missionary papers.
"The Life of Trust: Being a Narrative of the Lord's Dealings With George Müller" by George Müller
It is the most easily worked paper circulation and circulating medium in existence.
"Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 3" by Various
It circulated information, distributed medals, and brought agricultural improvers together.
"The English Utilitarians, Volume I." by Leslie Stephen
It will be perceived that there are two distinct circulations, each of which is carried on by its own system of vessels.
"Popular Education" by Ira Mayhew
They circulated petitions, raised large sums of money by fairs, held prayer-meetings and conventions.
"History of Woman Suffrage, Volume I"

In poetry:

His despair seems to detain him like a pillory
As he lowers his anemic head in rowing,
He circulates among the boats at anchor,
Cargo-boats, steamers, coal-burners...
"Japan —Nagasaki" by Henry Jean-Marie Levet

In news:

The Senate leadership is planning to introduce a summary outline of an immigration bill shortly before 6 pm on Thursday, one day after circulating a draft to advocacy groups.
An unknown number of new George Washington dollar coins were mistakenly struck without their edge inscriptions, including "In God We Trust," and made it past inspectors and into circulation, the US Mint said Wednesday.
At the same time, poor venting will let the goggles fog-somewhere in the air circulation balance is the point where I can see when I ride.
The story began circulating in October: A boy with leukemia had moved with his family to spend his final days in the Colorado mountains.
When leg veins fail to efficiently return blood to the central circulation of the body, skin breaks down or fails to repair, and a venous stasis ulcer develops.
Also, the devices can circulate carbon monoxide in the air, which can kill you.
Biggest concern is fatigue and lack of circulation, rather than lightning bolts.
Hormones that circulate in the blood could explain why older people have different sleep patterns than younger people, a new study suggests.
A few minutes ago, I received an e-mail circulated by Bill King, formerly mayor of Kemah and a member of the governor's Hurricane Ike commission.
Many cases of impotence are the result of physical causes, such as problems with circulation or nerves.
Last week, a crazy news story circulated on the internet about Los Angeles County adopting new legislation that would impose $1000 fines on beach goers who tossed frisbees or footballs.
From text messages to t-shirts, versions of this quote circulated everywhere during last year's historic presidential election.
Deerhunter Circulation Rainwater Cassette Exchanges 4AD/Kranky.
This week in Page to Screen—PW's weekly column tracking film rights circulating and sold in Hollywood—CAA shops the new Thomas Pynchon , and Stephen Moore takes out an Edgar winner's newest thriller.
Still, in some Levittown neighborhoods moms have begun circulating rain date fliers.

In science:

Our proposed scenario is also different from the circulation flow proposed by Mathews et al. (2004); in their scenario the gas does not cool below X-ray emission temperature.
Feedback Heating with Slow Jets in Cooling Flow Clusters
This forcing term is usually of a shorter time scale than the response time scale of the large scale oceanic thermohaline circulation.
Stochastic Dynamics of a Coupled Atmosphere--Ocean Model
Imperfections of the thermohaline circulation: Latitudinal asymmetry and preferred northern sinking. J.
Stochastic Dynamics of a Coupled Atmosphere--Ocean Model
Mixing and energetics of the oceanic thermohaline circulation. J.
Stochastic Dynamics of a Coupled Atmosphere--Ocean Model
Ocean Circulation and Climate: Observing and Modeling the Global Ocean.
Stochastic Dynamics of a Coupled Atmosphere--Ocean Model