Definition of Version
Version: 1. In obstetrics, the process of turning the fetus. A cephalic version brings the fetal head into the birth canal. 2. In gynecology, the tilting of the uterus. Uterine retroversion indicates the uterus is tilted backwards. 3. In ophthalmology, the conjugate rotation (turning) of both eyes in the same direction.
The special uses of the term "version" in medicine hew closely to its origin from the Latin verb vertere, to turn.