All of the offspring that are at the same stage of descent from a common ancestor: Mother and daughters represent two generations. Biology A form or stage in the life cycle of an organism: asexual generation of a fern. The average interval of time between the birth of parents and the birth of their offspring. A group of individuals born and living about the same time. A group of generally contemporaneous individuals regarded as having common cultural or social characteristics and attitudes: "They're the television generation\u201d ( Roger Enrico). A stage or period of sequential technological development and innovation. A class of objects derived from a preceding class: a new generation of computers. The formation of a line or geometric figure by the movement of a point or line. The act or process of generating; origination, production, or procreation.