Wiktionary
multigeneration
a. Of, pertaining to, or affecting multiple generations; multigenerational
Usage examples of "multigeneration".
Perhaps they were colonists on some giant starship, a low-tech, multigeneration ark.
Perhaps Orion and Daedalus could be used as multigeneration ships, so those arriving at a planet of another star would be the remote descendants of those who had set out some centuries before.
It was profoundly disturbing, Bobby found, to gaze at this flickering multigeneration face, the face of a chimpanzee-like creature he might not have looked at twice in some zoo .
Brittina was a graduate student at the same university that had provided multigeneration employment for the Laputa family.