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• IV
  IV

  noun

  an intravenous device for delivering electrolyte solutions, medicines, and nutrients.
• i.v.
  i.v.

  abbreviation

  increased value.
• I.V.
  I.V.

  abbreviation

  initial velocity.

IV

¹ American  

[ahy-vee] / ˈaɪˈvi /

noun

• IVs,
  plural
• IV's
  plural

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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Other Word Forms

Noun Inflected Forms

• IV's
  plural
• IVs
  plural

Etymology

Origin of IV

First recorded in 1950–55

Example Sentences

See Examples For:

IV I.V. IV's IVs

King Oyo Nyimba Kabamba Iguru Rukidi IV died in the US last week aged 34 after receiving treatment for an aggressive form of cancer.

From BBC ● Sep. 4, 2026

Fearing the man suffered crush injuries, paramedics reached his arm through the trash and administered medication through an IV as the two-hour rescue stretched on, he said.

From Los Angeles Times ● Sep. 3, 2026

He did so on various grounds, including that they had not examined Pike before rendering an opinion about whether her veins were too small to handle the required IV placement.

From Slate ● Aug. 25, 2026

Operation Jackal IV is one of multiple "Jackal" police operations that have taken place since 2022.

From BBC ● Aug. 25, 2026

I watch as Julie hangs the bag, taking the IV line and turning toward me.

From "Five Feet Apart" by Rachael Lippincott

Elsewhere, Unilever last month talked up Liquid I.V., a maker of electrolyte-drink mixes that it bought in 2020.

From MarketWatch ● Jul. 11, 2026

Unilever’s Liquid I.V. electrolyte drink mix wants viewers to appreciate hydration.

From The Wall Street Journal ● Feb. 6, 2026

Other things that I have automatic repeat orders set up for: Swiffer Wet Jet pads, Liquid I.V., coffee beans, magnesium gummies, shampoo and conditioner, and assorted cleaning supplies.

From Slate ● Jan. 21, 2024

Employees handed out packets of Liquid I.V. hydration powder and samples of Mosh, a line of protein bars by Maria Shriver and her son Patrick Schwarzenegger.

From Los Angeles Times ● Jan. 11, 2024

“We’ve got him on I.V. antibiotics and he’s doing pretty well,” Dr. Gonzalez said in a low voice, “but unless we find those dogs, he’ll need a series of rabies injections. Those are no fun.”

From "Hoot" by Carl Hiaasen

Then there were the toilets: Literal, singing ones for hydration brand Liquid IV’s Super Bowl debut, urging viewers to check what color their urine was.

From The Wall Street Journal ● Feb. 9, 2026

Prime’s decision to choreograph Rams wide receiver Louis Brown IV’s mocking version of the “Deion shuffle” after scoring that go-ahead touchdown was pure directing brilliance, too.

From Los Angeles Times ● Sep. 17, 2023

Compared with past titles, Diablo IV’s launch appears to have gone well.

From New York Times ● Jun. 12, 2023

The streamer, known as Actually Arcane on Twitch, shared a video of her emotional reaction to seeing Diablo IV's character creator for the first time.

From BBC ● Jun. 6, 2023

Vega IV's spaceport was bathed in brilliant, blue-cast light from the magnificent sun.

From Spillthrough by Daniel F. Galouye

Desperate to save them, records show, doctors inserted tubes into their airways and hooked them up to IVs.

From Salon ● May 7, 2026

Even as the labor market has softened, healthcare jobs have stayed plentiful: People spend on healthcare in good times and bad, and thus far, the ability to change bedpans and insert IVs hasn’t been automated.

From The Wall Street Journal ● Oct. 12, 2025

Pratt had been hospitalized with high blood pressure, a condition that had plagued him for years, but had torn out his IVs and gone home.

From Los Angeles Times ● Jun. 28, 2025

"We were told that his illness was one in a million. Other parents were learning to change diapers but I was learning how to change chemotherapy ports and IVs."

From BBC ● Mar. 15, 2025

I’ve seen August after his surgeries: his little face bandaged up and swollen, his tiny body full of IVs and tubes to keep him alive.

From "Wonder" by R. J. Palacio