In Vitroes are a fictional genetically engineered subspecies of humans in the science fiction television series Space: Above and Beyond. The name is etymologically derived from the Latin phrase "in vitro", which is used in science to refer to state of being in an artificial environment outside the living organism. Thus, In Vitro refers to the race not only being conceived in a laboratory, but also artificially gestated in glass and metal cylinders, to be "born" as young adults.