IV

noun
\ ˌī-ˈvē How to pronounce IV (audio) \
plural IVs

Definition of IV

 (Entry 1 of 2)

: an apparatus used to administer a fluid (as of medication, blood, or nutrients) intravenously also : a fluid administered by IV

Definition of IV (Entry 2 of 2)

intravenous; intravenously

Examples of IV in a Sentence

Noun The nurse started an IV. The patient was hooked up to an IV.

First Known Use of IV

Noun

circa 1955, in the meaning defined above

History and Etymology for IV

Noun

intravenous

Keep scrolling for more

Learn More about IV

Statistics for IV

Cite this Entry

“IV.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/IV. Accessed 30 Nov. 2020.

Keep scrolling for more

More Definitions for IV

IV

noun
How to pronounce IV (audio)

English Language Learners Definition of IV

US, medical : a device that is used to allow a fluid (such as blood or a liquid medication) to flow directly into a patient's veins

IV

noun
\ ˈī-ˈvē How to pronounce IV (audio) \
plural IVs

Medical Definition of IV

 (Entry 1 of 2)

: an apparatus used to administer a fluid (as of medication, blood, or nutrients) intravenously also : a fluid administered by IV

Medical Definition of IV (Entry 2 of 2)

1 intravenous; intravenously
2 intraventricular

Comments on IV

What made you want to look up IV? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

A Thanksgiving Word Quiz

  • a traditional thanksgiving dinner
  • November comes from a word for which of the following numbers?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Citation

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!