Of or involving the cells of an organization or movement: The assessment of opposition to any totalitarian regime ... is notoriously difficult, for any effective movement must be secretive and cellular (Anthony Sampson). 4. Of or relating to a cellular telephone.
In the past, a human generation has been considered to be 20-25 years. Older genealogical documents will use these numbers. However, genealogical studies have revealed that this is too simplistic and can result in large inaccuracies during statistical calculation.
Gestation Period for Humans. Gestation period for humans is the period from conception to birth and is estimated to be 260 days. But there is lot more to this topic than what appears. Keep reading. The time during which the embryo or fetus gets fully developed in the uterus is called the gestation period or pregnancy.