in vivo

American  

[in vee-voh] / ɪn ˈvi voʊ /

adverb

1. (of a biological process) occurring or made to occur within a living organism or natural setting.

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in vivo British  

/ ɪn ˈviːvəʊ /

adverb

1. (of biological processes or experiments) occurring or carried out in the living organism

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in vivo Scientific  

/ ĭnvē′vō /

1. Inside a living organism.

2. Compare in vitro

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in vivo Cultural  

1. In nature; literally, “in life.” In vivo conditions are distinguished from those that might exist only in a laboratory. (Compare in vitro.)

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Etymology

Origin of in vivo

First recorded in 1900–05; from Latin in vīvō “in (something) alive”

Compare meaning

How does in-vivo compare to similar and commonly confused words? Explore the most common comparisons:

• in vivo vs. in vitro

Example Sentences

Future studies will focus on testing the biological effects of the newly discovered trace diterpenes and evaluating their safety and effectiveness in vivo.

From Science Daily

But a new generation of biotech companies is making gene therapy more accessible through in vivo approaches, in which lentiviral vectors deliver genetic instructions directly inside the body.

From The Wall Street Journal

First, they carefully recreated the TCR's in vivo membrane environment using the right lipid mixture.

From Science Daily

The new study uses in vivo experiments with mice infected with influenza viruses to shed light on how fever provides protection and why this protection may not be enough against avian strains.

From Science Daily

"It was an in vitro and in vivo project, both providing the same outcome," Norris says.

From Science Daily