- The definition of circulation is free movement or moving about in a specific course.
- An example of circulation is air freely flowing into a classroom from the hallway and windows.
- An example of circulation is blood moving through the body.
circulation definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- free movement around from place to place, as of air in ventilating
- the act of moving around in a complete circuit; specif., the movement of blood out of and back to the heart through the arteries and veins
- the flow of sap in a plant
- the passing of something, as money or news, from person to person or place to place; dissemination
- the distribution of newspapers, magazines, etc. among readers
- the extent to which something is circulated, as the average number of copies of a magazine sold in a given period
Origin: Middle English circulacioun ; from Classical Latin circulatio: see circulate
circulation definition by American Heritage Dictionary
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- Movement in a circle or circuit, especially the movement of blood through bodily vessels as a result of the heart's pumping action.
- a. Movement or passage through a system of vessels, as of water through pipes; flow.b. Free movement or passage.
- The passing of something, such as money or news, from place to place or person to person.
- a. The condition of being passed about and widely known; distribution.b. Dissemination of printed material, especially copies of newspapers or magazines, among readers.c. The number of copies of a publication sold or distributed.
circulation - Medical Definition
The American Heritage® Medical Dictionary Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Movement in a circle or circuit, especially the movement of blood through bodily vessels as a result of the heart's pumping action.
circulation - Phrases/Idioms
circulation - Science Definition
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. Oxygen-rich blood is carried away from the heart by the arteries, and oxygen-poor blood is returned to the heart by the veins. The circulation of lymph occurs in a separate system of vessels (the lymphatic system). Lymph is pumped back to the heart by the contraction of skeletal muscles.