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.
Additional views for the life span of man (i.e., the length of a generation) include 100, 80, 70, 60, 50, and 20 years. A more recent theory divides the 2166 years from Abrahams birth to the birth of Christ by the 42 generations listed in Matthew chapter 1 to give a generation length of 51.57 years.