Meanings
nounringworld (plural ringworlds)
plural ringworlds
- literatureAn artificial megastructure in space, consisting of a rotating ring encircling a star and having an inhabitable inner surface with gravity produced through centripetal force.
Origin
From ring + world, introduced by Larry Niven in the novel Ringworld (1970).
Full word history & related roots →Cite this entry
APA
ringworld. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/ringworld
MLA
“ringworld.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ringworld. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “ringworld,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/ringworld.
Source: ringworld on Wiktionary, CC BY-SA 4.0.