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.
In human terms about 25 years give or take 10 years either way. Rule of thumb I have found generally is 4 generations per century, though some families achieve 5 if they all start child bearing in their teens. Source(s): UK population stats (using my calculations) Paul Â· 1 decade ago.