in·​fu·​sion | \ in-ˈfyü-zhən How to pronounce infusion (audio) \

Definition of infusion

1 : the act or process of infusing an infusion of new ideas
2 : a product obtained by infusing herbal infusions
3 : the continuous slow introduction of a solution especially into a vein

Examples of infusion in a Sentence

Her ideas have brought a new infusion of vitality to the organization. a strong infusion of tea a medicinal drink made by infusion of herbs
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Recent Examples on the Web

One recent offering, the Pineapple Arrack, consisted of coconut palm liquor from Sri Lanka, cinnamon, cardamom, cloves and an infusion of pineapple skin. Robyn Eckhardt, WSJ, "Two Strategic Days in Singapore: Where to Splurge, Where to Save," 4 Jan. 2019 Further, with the baby-boomers retiring — and birth rates plummeting — the future of American economic growth, and the survival of Social Security, depends on an infusion of foreign workers. Eric Levitz, Daily Intelligencer, "We Owe Central American Migrants Much More Than This," 21 June 2018 In 2004, The Times said, Donald Trump induced his siblings to sell their father’s remaining apartment buildings for $737.9 million – giving up a steady stream of income for a one-time infusion of cash. Jonathan O’connell, The Seattle Times, "Donald Trump’s decade-long buying spree defied norms and tapped an unusual source," 8 Oct. 2018 Many of her patients came in for an immune-boosting infusion; others come in for an IV within 24 hours before or after a flight to offset jetlag (prices start at $375). Jamie Rosen, Town & Country, "Is the Wellness IV the Next Big Thing in Beauty?," 15 Aug. 2018 For flavor inspiration, The Big Book of Kombucha and Kombucha Revolution have recipes for every infusion under the sun, from root beer to rhubarb. Allison Young, Good Housekeeping, "How to Make Your Own Homemade Kombucha," 19 July 2018 Rather than, say, sell the profitable healthcare unit to a strategic buyer in return for a rapid infusion of cash, Mr Flannery will spin it off as a standalone firm. The Economist, "John Flannery gets down to business restructuring General Electric," 27 June 2018 Others see a geriatric city Senate delegation long overdue for an infusion of youthful vigor. Michael Dresser,, "Challengers to Baltimore senators could bring energy — but also a loss of clout for city in Annapolis," 11 May 2018 The Lakers, desperate for an infusion of edge, were smitten. Lee Jenkins,, "Summer of Showtime: Why All Eyes Will Be on the Lakers," 17 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'infusion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of infusion

15th century, in the meaning defined at sense 1

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Last Updated

12 Mar 2019

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The first known use of infusion was in the 15th century

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More Definitions for infusion



English Language Learners Definition of infusion

: the addition of something (such as money) that is needed or helpful
: a drink made by allowing something (such as tea) to stay in a liquid (such as hot water) : a drink made by infusing something
: the act of infusing something


in·​fusion | \ in-ˈfyü-zhən How to pronounce infusion (audio) \

Medical Definition of infusion

1a : the introducing of a solution (as of glucose or salt) especially into a vein also : the solution so used
b(1) : the steeping or soaking usually in water of a substance (as a plant drug) in order to extract its soluble constituents or principles — compare decoction sense 1
(2) : the liquid extract obtained by this process
2 : a watery suspension of decaying organic material culturing soil amebas in lettuce infusion

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More from Merriam-Webster on infusion

Rhyming Dictionary: Words that rhyme with infusion

Spanish Central: Translation of infusion

Nglish: Translation of infusion for Spanish Speakers

Britannica English: Translation of infusion for Arabic Speakers

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