Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “circulation”

See all translations

circulation

noun [C/U]  /ˌsɜr·kjəˈlei·ʃən/ us  
biology the movement of blood inside the body Circulation is also the movement of air or water in a space or system: [U] The fans in the air circulation system make a lot of noise. A magazine or newspaper’s circulation is the number of people who read it: [C] The Chronicle has a daily circulation of 505,000. If something is in circulation, it is available: [U] Are the new dollar coins in circulation yet? If something is out of circulation, it is not available: [U] The company takes its movies out of circulation, then shows them again. [U] fig. infml She’s been out of circulation since her accident.
(Definition of circulation from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of circulation?
Add Cambridge dictionaries to your browser to your website

Definitions of “circulation” in other dictionaries

Word of the Day

bad/hard/tough luck

said to express sympathy with someone when something bad has happened to them

Word of the Day

Think long and hard; the language of decisions

by Liz Walter,
January 28, 2015
One of the best ways (perhaps the best way) to improve your English is to learn how words go together in phrases, idioms, or other patterns such as verb/noun or adjective/noun pairs (often called ‘collocations’). This blog looks at some useful phrases and collocations connected with the subject of decisions, something we

Read More 

micro pig noun

January 26, 2015
an extremely small pig, bred to be a pet Micro pigs have become popular pets recently, with famous owners including Victoria Beckham, Paris Hilton and Olympic diver, Tom Daley.

Read More