Medical Definition of In vivo

1. What Kind of Doctor Do I Need? Slideshow
2. Dental (Oral) Health Quiz
3. Causes of a Heart Attack Slideshow

In vivo: In the living organism. For example, an experiment that is done in vivo is done in the body of a living organism as opposed to in a laboratory method that does not use the living organism as the host of the test. In vivo is the opposite of in vitro.

Need help identifying pills and medications?
Use the pill finder tool on RxList.