Noun
ringworld (plural ringworlds)
(science fiction) An artificial megastructure in space, consisting of a rotating ring encircling a star and having an inhabitable inner surface with gravity produced through centripetal force.
A third game, Ringworld: Within ARM's Reach, was also planned, but never completed. Source: Internet
Based on his studies of an ancient Ringworld map, Louis devises a plan to escape. Source: Internet
By the time Ringworld takes place, Kzinti are able to deal with other races diplomatically, rather than by attacking and enslaving them. Source: Internet
Female Kzinti are not sapient, although among the archaic Kzinti found on the Ringworld some are. Source: Internet
Gamemaster Book The Gamemaster Book begins with technical essays on the Ringworld, from physical construction, to life on the ring, with diagrams. Source: Internet
In Niven's novel Ringworld's Children the Ringworld itself is converted into a gigantic Quantum II hyperdrive and launched into hyperspace while within its star's gravity well. Source: Internet