IV

¹ American  

[ahy-vee] / ˈaɪˈvi /

noun

plural

IVs, IV's

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

---

IV ² American  

abbreviation

1. intravenous.

2. intravenous drip.

3. intravenous injection.

4. intravenously.

---

i.v. ³ American  

abbreviation

1. increased value.

2. initial velocity.

3. invoice value.

---

I.V. ⁴ American  

abbreviation

1. initial velocity.

---

i.v. British  

abbreviation

1. intravenous(ly)

---

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

Courtney rips the IV from her arm and escapes, barefoot and in a hospital gown.

From Salon • Mar. 24, 2026

There are shops for laser facials, IV hydration and vitamin infusions, Botox and red-light therapy.

From The Wall Street Journal • Mar. 17, 2026

I already got the notification from Stella’s app and moved from the desk over to my bed, where the IV rack is, waiting for her arrival.

From "Five Feet Apart" by Rachael Lippincott