Dictionary

in vivo

adverb or adjective in vi·vo \in-ˈvē-(ˌ)vō, -ˈwē-(ˌ)wō\

Definition of IN VIVO

:  in the living body of a plant or animal

Origin of IN VIVO

New Latin, literally, in the living
First Known Use: 1901

in vivo

adverb or adjective in vi·vo \in-ˈvē-(ˌ)vō\   (Medical Dictionary)

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>

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