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.
A generation is all of the people born and living at about the same time, regarded collectively.. It can also be described as, the average period, generally considered to be about thirty years, during which children are born and grow up, become adults, and begin to have children of their own..