in vivo

adverb or adjective

in vi·​vo in-ˈvē-(ˌ)vō How to pronounce in vivo (audio)
-ˈwē-(ˌ)wō
: in the living body of a plant or animal

Examples of in vivo 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.
Sana continues to focus on developing its ex vivo and in vivo cell engineering platforms and advancing its pipeline of product candidates. Quartz Bot, Quartz, 8 Nov. 2024 Geranium Oil Research shows that geranium oil demonstrated hair growth in in vitro (performed in a lab dish or test tube) and in vivo (performed on living organisms) studies. Kathi Valeii, Verywell Health, 24 Oct. 2024 The researchers took living, or in vivo, human beta cells and transplanted them into the kidneys of diabetic and nondiabetic mice. Lauren J. Young, Scientific American, 29 July 2024 Types and Benefits Geranium Oil Research shows that geranium oil demonstrated hair growth in in vitro (performed in a lab dish or test tube) and in vivo (performed on living organisms) studies. Kathi Valeii Published, Verywell Health, 2 July 2024 See all Example Sentences for in vivo 

Word History

Etymology

New Latin, literally, in the living

First Known Use

1901, in the meaning defined above

Time Traveler
The first known use of in vivo was in 1901

Dictionary Entries Near in vivo

Cite this Entry

“In vivo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20vivo. Accessed 21 Dec. 2024.

Kids Definition

in vivo

adverb or adjective
in vi·​vo in-ˈvē-(ˌ)vō How to pronounce in vivo (audio)
-ˈwē-(ˌ)wō
: inside the living body of a plant or animal
in vivo activity
Etymology

Latin, literally, "in the living"

Medical Definition

in vivo

adverb or adjective
in vi·​vo in-ˈvē-(ˌ)vō How to pronounce in vivo (audio)
1
: in the living body of a plant or animal
in vivo synthesis of DNA
microorganisms are not ordinarily destroyed in vivo{/qi} by bacteriostatic drugsThe Journal of the American Medical Association
2
: in a real-life situation
observing a patient's behavior in vivo
Last Updated: - Updated example sentences
Love words? Need even more definitions?

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