in vivo

in vi·vo  (vv)

adv. & adj.

Within a living organism: metabolic studies conducted in vivo; in vivo techniques.

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[New Latin in vv : Latin in, in + Latin vv, ablative of vvus, living, a living body.]

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in vivo  (n vv)

Inside a living organism. Compare in vitro.

Thesaurus

Adj.	1.	in vivo - within a living organism; "in vivo techniques" biological science, biology - the science that studies living organisms ex vivo, in vitro - in an artificial environment outside the living organism; "in vitro fertilization"
Adv.	1.	in vivo - in the living organism; "studies conducted in vivo"