- one complete life cycle.
- one of the alternate phases that complete a life cycle having more than one phase: the gametophyte generation.
Origin of generation
- a successive stage in natural descent of organisms: the time between when an organism comes into being and when it reproduces
- the individuals produced at each stage
- belonging to a generation specified as having been born in or as having parents, grandparents, etc, born in a given countrya third-generation American
- belonging to a specified stage of development in manufacture, usually implying improvementa second-generation computer
early 14c., "body of individuals born about the same period" (usually 30 years), from Old French generacion (12c.) and directly from Latin generationem (nominative generatio) "generating, generation," noun of action from past participle stem of generare "bring forth" (see genus). Meanings "act or process of procreation," "process of being formed," "offspring of the same parent" are late 14c.
Generation gap first recorded 1967; generation x is 1991, from Douglas Coupland book of that name; generation y attested by 1994. Related: Generational. Adjectival phrase first-generation, second-generation, etc. with reference to U.S. immigrants is from 1896.
- All of the offspring that are at the same stage of descent from a common ancestor.
- The average interval of time between the birth of parents and the birth of their offspring.