IV

¹ American  

[ahy-vee] / ˈaɪˈvi /

noun

plural

IVs, IV's

1. an intravenous device for delivering electrolyte solutions, medicines, and nutrients.

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IV ² American  

abbreviation

1. intravenous.

2. intravenous drip.

3. intravenous injection.

4. intravenously.

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i.v. ³ American  

abbreviation

1. increased value.

2. initial velocity.

3. invoice value.

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I.V. ⁴ American  

abbreviation

1. initial velocity.

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i.v. British  

abbreviation

1. intravenous(ly)

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Etymology

Origin of IV

First recorded in 1950–55

Example Sentences

He now spends most days hooked up to an IV machine at his small apartment outside of Orlando, Fla.

From The Wall Street Journal • Apr. 20, 2026

The first actual Moon landing - Artemis IV - is targeted for 2028, though there are doubts that target is achievable.

From BBC • Apr. 11, 2026

This mission is a test flight designed to inform future treks, such as Artemis IV, a moon landing currently slated for 2028.

From Salon • Apr. 7, 2026

Artemis IV External link is slated for 2028 and is intended to be the first U.S. moon landing since 1972.

From Barron's • Apr. 1, 2026

The heart monitor beeped at the side of the bed, and two thin tubes snaked out of Father’s arm, connecting him to an IV stand.

From "The Rock and the River" by Kekla Magoon