infusion

American  

[in-fyoo-zhuhn] / ɪnˈfyu ʒən /

noun

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, ɪnˈfjuːsɪv /

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

• infusive adjective
• reinfusion noun

Etymology

Origin of infusion

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

Example Sentences

A private equity cash infusion could help practices expand, hire, or invest in new equipment.

From Slate • Mar. 17, 2026

Traditionally, CD40 therapies were given through intravenous infusion.

From Science Daily • Mar. 16, 2026

The school is using the most recent gift to bolster its endowment, now $91 million after the infusion, and is on track to open the first veterinary medical school in the state.

From The Wall Street Journal • Mar. 8, 2026

The initial infusion would consist of 6.4 billion Cronos valued at $1 billion, or about 15.8 cents per Cronos.

From Los Angeles Times • Mar. 3, 2026

Candles float in three small pools: the first is full of rose petals, the second is thick with an infusion of aloe, and the last one simmers with salt, sulfur, and steam.

From "The Belles" by Dhonielle Clayton