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

According to High Times, many innovative chefs are now exploring savory infusions, broadening the appeal of edibles to even the pickiest of food lovers. —Matt Rozo, Mercury News, 18 Apr. 2025

The infusion of speed has made the Blackhawks a lot more watchable and given Sörensen a lot more to work with. —Mark Lazerus, New York Times, 13 Apr. 2025

In fact, an infusion of vividness into your ‘fits could come by way of a phone crossbody bag like this top choice from Rothy’s. —Stacia Datskovska, Footwear News, 10 Apr. 2025

Tuesday’s result in Wisconsin’s Supreme Court race poured even more fuel on the fire as Judge Brad Schimel lost by 10 points despite a $25 million infusion from Musk. —Christian Datoc, The Washington Examiner, 3 Apr. 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