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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 research work included testing stem cell production, creating and testing IV fluid, and studying how the bacteria that causes pneumonia can lead to long‑term heart damage.

From Los Angeles Times ● Oct. 8, 2026

Despite that, most had aggressive disease that had already progressed to Stage III or IV by the time it was diagnosed.

From Science Daily ● Oct. 6, 2026

Pike's legal team had previously objected to the execution's IV protocol, saying it would have caused needless suffering due to her small veins and a blood condition.

From Barron's ● Oct. 4, 2026

The people tasked with the job of finding a usable vein and securing an IV are not phlebotomists with specialized training or nurses.

From Salon ● Oct. 3, 2026

Its southern scribe appended this note: Findegil, King’s Writer, finished this work in IV 172.

From "The Fellowship of the Ring" by J.R.R. Tolkien

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

Ter Kulve referenced the success of Unilever’s acquisition of electrolyte business Liquid I.V., noting the need for people who want to cool down while indulging.

From The Wall Street Journal ● Dec. 5, 2025

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

Alternatively, it has been suggested that the panels were originally installed side by side in the cathedral of St. Vitus, Prague, perhaps for Charles IV’s coronation.

From The Wall Street Journal ● Dec. 26, 2025

Titled "Past, Present, Future", the tour is billed as an "intimate" look at Usher Raymond IV's 30-year career, as well as "a glimpse into the future".

From BBC ● Mar. 30, 2025

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

From New York Times ● Jun. 12, 2023

Bailey studies every teammate, even watching Russell Stong IV’s moves in practice.

From Los Angeles Times ● Mar. 19, 2023

The achievement of the reign of Henry IV's son, Henry V, which chiefly interests us was the adjustment of the question of investitures.

From An Introduction to the History of Western Europe by James Harvey Robinson

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

They hooked me up with two IVs: one sugar, one salt.

From "Adrift" by Paul Griffin

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