circulation | | |
n. (communication) | 1. circulation | the dissemination of copies of periodicals (as newspapers or magazines). |
| ~ airing, dissemination, public exposure, spreading | the opening of a subject to widespread discussion and debate. |
n. (phenomenon) | 2. circulation | movement through a circuit; especially the movement of blood through the heart and blood vessels. |
| ~ organic phenomenon | (biology) a natural phenomenon involving living plants and animals. |
| ~ blood pressure | the pressure of the circulating blood against the walls of the blood vessels; results from the systole of the left ventricle of the heart; sometimes measured for a quick evaluation of a person's health.; "adult blood pressure is considered normal at 120/80 where the first number is the systolic pressure and the second is the diastolic pressure" |
| ~ systemic circulation | circulation that supplies blood to all the body except to the lungs. |
| ~ pulmonary circulation | circulation of blood between the heart and the lungs. |
| ~ vitelline circulation | circulation of blood between the embryo and the yolk sac. |
n. (quantity) | 3. circulation | (library science) the count of books that are loaned by a library over a specified period. |
| ~ library science | the study of the principles and practices of library administration. |
| ~ count | the total number counted.; "a blood count" |
n. (quantity) | 4. circulation | number of copies of a newspaper or magazine that are sold.; "by increasing its circulation the newspaper hoped to increase its advertising" |
| ~ count | the total number counted.; "a blood count" |
n. (event) | 5. 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" |
| ~ plant life, flora, plant | (botany) a living organism lacking the power of locomotion. |
| ~ change of location, travel | a movement through space that changes the location of something. |
n. (act) | 6. circulation | the spread or transmission of something (as news or money) to a wider group or area. |
| ~ spreading, spread | act of extending over a wider scope or expanse of space or time. |
| ~ recirculation | circulation again. |
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