in vivo

in vi·vo

adv or adj \in-ˈvē-(ˌ)vō\

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>