ADJECTIVE (1)

1. within a living organism;
- Example: "in vivo techniques"


ADVERB (1)

1. in the living organism;
- Example: "studies conducted in vivo"

WordNet (r) 3.0 (2006):

in vivo
    adv 1: in the living organism; "studies conducted in vivo"
    adj 1: within a living organism; "in vivo techniques" [ant: ex
           vivo, in vitro]