Merriam Webster
Definition of generation
:a body of living beings constituting a single step in the line of descent from an ancestor
b :a group of individuals born and living contemporaneously
:a group of individuals having contemporaneously a status (such as that of students in a school) which each one holds only for a limited period
d :a type or class of objects usually developed from an earlier type
- first of the … new generation of powerful supersonic fighters
- —Kenneth Koyen
2a :the action or process of producing offspring :
procreation
b :the process of coming or bringing into being
c
rigination by a
generating process :
production; especially :formation of a geometric figure by motion of another
:the average span of time between the birth of parents and that of their offspring