noun

• (now US, dialectal) Race, family; breed.
  "Thy Mothers of my generation: what's she, if I be a Dogge?"
• (now obsolete, Nigeria) Descendants, progeny; offspring.
• (geometry) The formation or production of any geometrical magnitude, as a line, a surface, a solid, by the motion, in accordance with a mathematical law, of a point or a magnitude, by the motion of a point, of a surface by a line, a sphere by a semicircle, etc.
  "the generation of a line or curve"
• (television) A copy of a recording made from an earlier copy.
  "With one-inch C format or half-inch Betacam used in the component mode, quality loss through additional generations is not such a problem. In this situation, it would be usual to make the necessary alterations while re-recording onto a third generation master […]"