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

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

A nurse has injected a dose of stem cells into Kenneth Scott through an IV in his arm; earlier, those same stem cells had been extracted from Scott’s body so they could be “activated.”

From Slate • Mar. 30, 2026

District Judge F. Dennis Saylor IV said he will make a decision by April 3.

From Los Angeles Times • Mar. 26, 2026

The capital changes would help “make it easier to pull deals off” and set the industry up for a “pretty active” second half of the year, said Frank Sorrentino IV, an investment banker at Stephens.

From The Wall Street Journal • Mar. 20, 2026

She inserts the IV line into a port on my chest.

From "Five Feet Apart" by Rachael Lippincott