: situated, performed, or occurring within or entering by way of a vein
an intravenous injection
also : used in or using intravenous procedures
an intravenous solution
intravenously adverb

Examples of intravenous in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Those warnings concern intravenous use, rather than injection into the spinal canal as alleged in Gilbert’s lawsuit. — Melissa Rudy, FOXNews.com, 11 Nov. 2026 Unable to swallow, with advanced Alzheimer’s, she was being fed by intravenous drip. — Kieran Setiya, New Yorker, 10 Nov. 2026 However, the warning is based on a risk that applies to adults who are receiving high, intravenous doses -- not the much smaller, intramuscular vitamin K dose babies receive. — Dr. Jade Cobern, ABC News, 5 Nov. 2026 Treatment for the renal syndrome can include intravenous fluids, tube feeding, medications, blood transfusions and potentially dialysis if patients have severe kidney damage, the Cleveland Clinic said. — Sacbee.com, 4 Nov. 2026 See All Example Sentences for intravenous

Word History

Etymology

International Scientific Vocabulary

First Known Use

circa 1849, in the meaning defined above

Time Traveler
The first known use of intravenous was circa 1849

Cite this Entry

“Intravenous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/intravenous. Accessed 14 Nov. 2026.

Kids Definition

intravenous

adjective
: being within or entering by way of the veins
intravenous feeding
intravenously adverb

Medical Definition

intravenous

adjective
1
: situated within, performed within, occurring within, or administered by entering a vein
an intravenous feeding
intravenous inflammation
2
: used in intravenous procedures
intravenous needles
an intravenous solution
intravenously adverb
Love words? Need even more definitions?

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