infusion

noun

in·​fu·​sion in-ˈfyü-zhən How to pronounce infusion (audio)
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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But the Chiefs have now received an infusion of young talent, which should help position the unit for a rebound. Mike Jones, New York Times, 25 Apr. 2026 Some medspas also offer IV infusions with doses far exceeding that limit. Stephanie Brown, Verywell Health, 24 Apr. 2026 The spa The treatments run the gamut from body scrubs and acupuncture to IV infusions and cryotherapy. Condé Nast, Condé Nast Traveler, 24 Apr. 2026 As part of that cash infusion, the WGA managed increases in the employer contribution caps, which had been stagnant. Katie Campione, Deadline, 24 Apr. 2026 See All Example Sentences for infusion

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

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

Cite this Entry

“Infusion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.grautoblog.com/dictionary/infusion. Accessed 27 Apr. 2026.

Kids Definition

infusion

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

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