in vivo

adverb or adjective

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in vi·vo | \ in-ˈvē-(ˌ)vō

, -ˈwē-(ˌ)wō \

Definition of in vivo

: in the living body of a plant or animal

Examples of in vivo in a Sentence

Recent Examples on the Web Investors are pouncing on the stock because of a new study showing that CRISPR technology, for the first time ever, can be used in vivo. — Sy Mukherjee, Fortune, 29 June 2021 The goal of my thesis is to investigate an in vivo model of a premature aging disorder. — Alex Zhavoronkov, Forbes, 24 May 2021 However, there is still no data on the potency of the antibodies in vivo or in patient bodies, says Kyratsous. — Aayushi Pratap, Forbes, 16 Apr. 2021 The totality of the data from these studies indicates that molnupiravir is not mutagenic or genotoxic in in vivo mammalian systems. — Chris Smith, BGR, 8 Mar. 2021 That way, scientists can study cancer development in vivo. — Courtney Linder, Popular Mechanics, 9 Sep. 2020 Molecular biologist Reza Kalhor started his lab (part computational, part molecular and experimental, studying in vivo barcoding) at Johns Hopkins University last October. — Chris Wright, Wired, 8 June 2020 Although studies are already underway with viral vectors that deliver new genes to certain tissues in people, in vivo gene therapy has only been used to modify blood stem cells in animal models of certain diseases. — Jon Cohen, Science | AAAS, 23 Oct. 2019 These can be conducted in vitro (using cells in a laboratory dish) or in vivo (using an animal as a stand-in for humans). — Los Angeles Times, 12 Mar. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'in vivo.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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Dictionary Entries Near in vivo

in vitro fertilization

in vivo

invocable

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Last Updated

10 Jul 2021

Cite this Entry

“In vivo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20vivo. Accessed 8 Aug. 2021.

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More Definitions for in vivo

in vivo

adverb or adjective

in vi·vo | \ in-ˈvē-(ˌ)vō

Medical Definition of in vivo

1 : in the living body of a plant or animal in vivo synthesis of DNA microorganisms are not ordinarily destroyed in vivo by bacteriostatic drugs — Journal of the American Medical Association

2 : in a real-life situation observing a patient's behavior in vivo