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

Etymology

Origin of infusion

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

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

Unified would benefit mightily from such funds — to the tune of hundreds of millions of dollars, but that infusion would not solve the district’s financial problems or remedy the enrollment decline.

From Los Angeles Times ● Sep. 16, 2026

The engineered cells are then returned to the patient in a single infusion.

From Science Daily ● Aug. 30, 2026

He had first infusion last year and encourages anyone living with HAE to research about trials.

From BBC ● Aug. 23, 2026

So we were looking forward to seeing sweeping improvements when Walter took control and provided the organization with a much-needed financial infusion.

From Los Angeles Times ● Aug. 12, 2026

“I recommend an infusion of mint leaves and chamomile to calm you.”

From "Ophelia" by Lisa Klein

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

Australia’s system balances encouraging local stories with large-scale economic infusions through two separate incentive programs.

From Los Angeles Times ● May 11, 2026

The company’s foundry business remains unprofitable, but Intel is winning back confidence following capital infusions from industry partners and federal government support.

From Barron's ● May 7, 2026

Alys placed the knife carefully beside the corked containers of herbal infusions.

From "Son" by Lois Lowry