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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.


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)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of IV

First recorded in 1950–55

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The formal diagnosis, stage IV, came in December.

From The Wall Street Journal Jul. 14, 2026

"This new eruption could present an even better opportunity for 'island-naut' exploration as we prepare to return to the Moon with women and men via Artemis IV," he said.

From Science Daily Jul. 10, 2026

In more severe cases, people may need to go to the hospital for supportive measures such as IV fluids, pain management and nursing care, according to the Centers for Disease Control and Prevention.

From Los Angeles Times Jul. 8, 2026

Jesus Perez, a vet in Caracas, is one of several from his profession who brought food, IV fluids and medicines to treat injured or dehydrated pets.

From Barron's Jul. 1, 2026

On the following Saturday, Auks II, III, and IV were ready, built exactly as he had described.

From "October Sky" by Homer Hickam

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

"I didn't think you could possibly do it with IV's in both arms. . ." he said, his voice shedding its tone of superiority and knowledge.

From Through these Eyes The courageous struggle to find meaning in a life stressed with cancer by Isaacson, Lauren Ann

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

From Salon May 7, 2026

On Saturdays, a Sacramento clinic repurposes the reclining chairs reserved for patients recovering from abortion procedures for the people coming in for the IVs.

From The Wall Street Journal Mar. 1, 2026

"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

Surrounded by tubes and IVs in a hospital room, the rapper flashed a peace sign at the camera and wrote in the caption that he’d been fighting for his life “literally for 9 days straight.”

From Los Angeles Times Oct. 3, 2023

IVs dangled next to their beds, respirators breathed for them, tubes fed them, and what little life they had left was kept going by machines.

From "City of the Plague God" by Sarwat Chadda

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