in vivo vs. in vitro

in vivo vs. in vitro: ºÚÁÏ꿉۪s the difference?

The scientific terms in vivo and in vitro are used to describe biological processes—specifically, to indicate where a process happens. In vivo (Latin for “in something aliveâ€) means happening inside a person or in a natural setting. In vitro (Latin for “in glass,†as in a glass test tube) means happening in a lab or other controlled environment—not inside a body or natural setting. For example, in vitro fertilization involves fertilization that happens outside the body.

adverb

  1. (of a biological process) occurring or made to occur within a living organism or natural setting. Compare in silico ( def ), in vitro ( def ).


adverb

  1. (of a biological process) made to occur in a laboratory vessel or other controlled experimental environment rather than within a living organism or natural setting. Compare in silico ( def ), in vivo ( def ).