generation
gen.er.a.tion \.jen-*-'ra--sh*n\ n 1a: a body of living beings constituting
a single step in the line of desce nt from an ancestor 1b: a group of
individuals born and living contemporaneously 1c: a group of individuals
having contemporaneously a status (as that of st udents in a school) which
each one holds only for a limited period 1d: a type or class of objects
developed from an earlier type 2: the average span of time between the
birth of parents and that of their offspring 3a: the act or process of
producing offspring : PROCREATION 3b: origination by a mathematical,
chemical, or other process : PRODUC TION; specif : formation of a
geometrical figure by motion of another 3c: the process of coming into
being