circulation

[ sur-kyuh-ley-shuh n ]
/ ˌsɜr kyəˈleɪ ʃən /

noun

Idioms

    in circulation, participating actively in social or business life: After a month in the hospital, he's back in circulation.

Origin of circulation

1400–50 for an earlier alchemical sense; 1645–55 for def 1; late Middle English circulacioun < Latin circulātiōn- (stem of circulātiō), equivalent to circulāt(us) (see circulate) + -iōn- -ion
Related forms
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for in circulation

circulation

/ (ˌsɜːkjʊˈleɪʃən) /

noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for in circulation

circulation


n.

mid-15c., from Middle French circulation or directly from Latin circulationem (nominative circulatio), noun of action from past participle stem of circulare "to form a circle," from circulus "small ring" (see circle (n.)). Used of blood first by William Harvey, 1620s.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for in circulation

circulation

[ sûr′kyə-lāshən ]

n.

Movement in a circle or circuit, especially the movement of blood through bodily vessels as a result of the heart's pumping action.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for in circulation

circulation

[ sûr′kyə-lāshən ]

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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with in circulation (1 of 2)

in circulation


Also, into circulation. In business or social life, especially after a period of absence. For example, After a month in the hospital Bill was eager to get back in circulation. The antonym is out of circulation, as in Since we had twins we've been out of circulation, but we're hoping to get out more often soon. These expressions, dating from the first half of the 1900s, employ circulation in the sense of “making the rounds among people,” a usage dating from the 1600s.

Idioms and Phrases with in circulation (2 of 2)

circulation


see in circulation; out of circulation.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.