in vivo
adverb or adjective
in vi·vo
in-ˈvē-(ˌ)vō 
-ˈwē-(ˌ)wō
: in the living body of a plant or animal
Examples of in vivo in a Sentence
Recent Examples on the Web
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
Gene editing inside the body or in vivo is now an achievable goal.
—Dana Taylor, USA TODAY, 20 June 2024
Another technique, in vivo exposure, forces you to directly face the object of your fear; perhaps climbing onto a stationary plane.
—Angela Haupt, TIME, 10 May 2024
See all Example Sentences for in vivo 
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
Gene editing inside the body or in vivo is now an achievable goal.
—Dana Taylor, USA TODAY, 20 June 2024
Another technique, in vivo exposure, forces you to directly face the object of your fear; perhaps climbing onto a stationary plane.
—Angela Haupt, TIME, 10 May 2024
See all Example Sentences for in vivo
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'in vivo.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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 17 Sep. 2024.
Copy CitationKids Definition
in vivo
adverb or adjective
in vi·vo
in-ˈvē-(ˌ)vō
-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
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 drugs—The Journal of the American Medical Association
The Journal of the American Medical Association2
: in a real-life situation
observing a patient's behavior in vivo
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