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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:

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

From Barron's ● Oct. 10, 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

His pass was intercepted on the first play from scrimmage and again late in the first half, when his throw landed right in the belly of linebacker Ernest Jones IV.

From Los Angeles Times ● Oct. 5, 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

Ptolemy IV Philopater hazarded the use of native Egyptian troops at Raphia, and won the battle with their help; just a few years later, native mercenaries in Thebes used their hard-won martial skills to revolt.

From "Circumference" by Nicholas Nicastro

Welly has been part of Unilever’s beauty and well-being segment, which houses brands such as Dove soap, Vaseline jelly and Liquid I.V. drink powders.

From The Wall Street Journal ● Oct. 19, 2026

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

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

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

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

From Los Angeles Times ● Mar. 19, 2023

His lead work on 12-string acoustic guitar was heard on George Hamilton IV’s 1963 hit “Abilene” — a record that, like “Singing the Blues,” topped the country chart and also reached the pop Top 20.

From New York Times ● Sep. 27, 2022

It was there that Godoy, favorite of Charles IV's wife, signed away Spain to Napoleon, the criminal act that led to such glorious consequences.

From Heroic Spain by Elizabeth Boyle O'Reilly

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

Snell was taken to the emergency room and stayed there overnight, getting two IVs to combat an unspecified illness undoubtedly compounded by exhaustion.

From Los Angeles Times ● Oct. 22, 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

The only letters left after that are three IVs, then CTOOMD.

From "Legend" by Marie Lu

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