infusion

American  

[in-fyoo-zhuhn] / ɪnˈfju ʒən /

noun

• infusions
  plural

1. the act or process of infusing.

2. something that is infused.

3. a liquid extract, as tea, prepared by steeping or soaking.

4. Pharmacology.

   1. the steeping or soaking of a crude drug in water.

   2. the liquid so prepared.

5. Medicine/Medical.

   1. the introduction of a saline or other solution into a vein.

   2. the solution used.

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infusion British  

/ ɪnˈfjuːʒən /

noun

1. the act of infusing

2. something infused

3. an extract obtained by soaking

4. med introduction of a liquid, such as a saline solution, into a vein or the subcutaneous tissues of the body

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Other Word Forms

Derived Forms

• reinfusion
  noun
• infusive
  adjective

Inflected Forms

Nouns

• infusions
  plural

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Etymology

Origin of infusion

1400–50; late Middle English < Latin infūsiōn- (stem of infūsiō ). See infuse, -ion

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Explanation

The most common example of an infusion you are likely to encounter in your daily life is your morning cup of coffee. An infusion is the creation of a new substance by steeping another substance in a liquid, usually water. Infusion is often misused with transfusion, which has a slightly different meaning. A transfusion, as in a blood transfusion, is the simple addition of one substance to another, without the creation of something new. But a drip feed of medicine, for example, is technically an infusion as it alters the state of the blood. See, you’re halfway to becoming a doctor (or at least a linguist) simply by reading this site.

Example Sentences

See Examples For:

infusion infusions

A deal would value the infusion provider at more than $5 billion.

From Barron's ● Oct. 5, 2026

Before the infusion, they were treated with corticosteroids and antihistamines.

From Science Daily ● Sep. 27, 2026

The company said it uses a different platform that takes roughly five days and is designed to let cells stabilize before infusion.

From The Wall Street Journal ● Sep. 3, 2026

With the infusion of talent from the draft and the trade deadline, analyst ratings for the Angels’ minor league system have risen from among the worst in baseball to middle of the pack.

From Los Angeles Times ● Aug. 31, 2026

“Well, you see, believers seek the Deathly Hallows,” said Xenophilius, smacking his lips in apparent appreciation of the Gurdyroot infusion.

From "Harry Potter and the Deathly Hallows" by J.K. Rowling

There are coffee drinks, mocktails, optional infusions, DJs on the weekends and a back patio where friends gather to play cards, talk and linger.

From Salon ● Sep. 8, 2026

A few studies suggest that adding vitamin C infusions to chemotherapy may help some patients live a little longer or help with side-effects, but other studies show no clear benefit.

From Science Daily ● Aug. 7, 2026

Because they drained their savings buying and fixing up the house, they needed the cash infusions to fund the flora.

From Los Angeles Times ● Aug. 3, 2026

The indie-film sector began to receive infusions of money and marketing via the Sundance Film Festival and the arrival of distribution companies such as Miramax and New Line.

From The Wall Street Journal ● Jul. 10, 2026

Wise men had massaged eucalyptus balm into her temples, steamed her face with herbal infusions.

From "Interpreter of Maladies" by Jhumpa Lahiri

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