Definition of "circulation" []

• Movement in a circle or circuit, especially the movement of blood through bodily vessels as a result of the heart's pumping action. (noun)
• Movement or passage through a system of vessels, as of water through pipes; flow. (noun)
• Free movement or passage. (noun)
• The passing of something, such as money or news, from place to place or person to person. (noun)
• The condition of being passed about and widely known; distribution. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "This long-established paper has now nearly completed its thirty-second volume, and notwithstanding the severe calamities in which the country is involved, and which tax most heavily in men and money those States in which its circulation is largest, it is nearing the close of another eventful year with its _circulation unimpaired_ -- a matter of special gratification, as showing that its course, in these trying times, has been generally approved, and that it has been more widely useful than ever the past year, by its firm and cordial support of the Government when assailed by a wicked rebellion."
• "Although less than 1/100th of one percent of the value of all U.S. currency in circulation is reported counterfeit, the $100 note is the most widely circulated and most often counterfeited denomination outside the U.S."
• "I do agree out laws are overly restrictive now but anything to combat the increasing number of guns in circulation is worth trying"