infusion

noun

in·​fu·​sion in-ˈfyü-zhən 

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

Recent Examples on the Web

Along with financial infusion, the summit will bring in a multitude of security personnel, resulting in road closures, increased traffic and extended wait times. —Emily Goodin, Miami Herald, 5 Sep. 2025

Along the east coast, the gulf stream provides a steady infusion of warm water—at least 80°F—which is rocket fuel for hurricanes sucking up moisture and energy from the oceans. —Jeffrey Kluger, Time, 5 Sep. 2025

Following massive cash infusions by investor Lawrence Stroll, and its hiring of the Adrians—ex-Bentley CEO Adrian Hallmark and ex-Red Bull Racing CTO Adrian Newey—the company has committed to upgrading its image, and its vehicles. —Brett Berk, Robb Report, 3 Sep. 2025

In June, the White Sox announced that billionaire private equity investor Justin Ishbia had agreed to a framework to become the long-term owner of the team that would include some capital infusions as a limited partner this year and next. —Peter Chawaga, MSNBC Newsweek, 3 Sep. 2025

Word History

Etymology

Middle English infusion, infusioun "act of pouring in (a medicine), injection, what is poured in, liquid extract," borrowed from Anglo-French & Latin; Anglo-French infusion "liquid extract," borrowed from Latin infūsiōn-, infūsiō "pouring in (of a medicament)," from infud-, variant stem of infundere "to pour in, instill" + -tiōn-, -tiō, suffix of action nouns — more at infuse

First Known Use

15th century, in the meaning defined at sense 1

Rhymes for infusion

• allusion
• collusion
• conclusion
• confusion
• contusion
• delusion
• diffusion
• effusion
• exclusion
• extrusion
• illusion
• inclusion

Kids Definition

infusion

noun

in·​fu·​sion in-ˈfyü-zhən 

1

: the act or process of infusing

an infusion of new ideas

2

: a product obtained by infusing

a strong infusion of tea

Medical Definition

infusion

noun

in·​fusion in-ˈfyü-zhən 

1

a

: 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