Definition of "Generation" :

noun: the act of producing offspring or multiplying by such production

noun: the production of heat or electricity

"Dams were built for the generation of electricity."

noun: a coming into being

noun: group of genetically related organisms constituting a single step in the line of descent

noun: all the people living at the same time or of approximately the same age

noun: the normal time between successive generations

"They had to wait a generation for that prejudice to fade."

noun: a stage of technological development or innovation

"The third generation of computers."