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

Building factories that make low-margin products requires follow-on capital infusions on terms that usually cram down seed investors. —Herb Zien, Forbes, 14 Jan. 2025

The bottom line: Expect a steady drip of infusion deal announcements over the next quarter. —Aaron Weitzman, Axios, 9 Jan. 2025

Working with David Liu, Sam Berns’ mom, and Leslie Gordon of the Progeria Research Foundation, my research group has already shown that a single intravenous infusion of an in vivo gene editor can dramatically extend the life of mice that have been engineered to carry the human progeria mutation. —Francis Collins, WIRED, 7 Jan. 2025

Yet industry experts question the U.S.-based steel manufacturer's path forward without an infusion of capital from Nippon Steel, which had proposed investing nearly $3 billion in U.S. Steel under terms of the deal. —Kate Gibson, CBS News, 6 Jan. 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

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