Meanings
nounworld line (plural world lines)
plural world lines
- natural sciencesA path in spacetime, especially that traversed by an elementary particle from its creation to its destruction.
Translations
Chinese Mandarin 世界線 /世界线
- 世界線 /世界线 (shìjièxiàn)path in spacetime
French ligne d'univers
- ligne d'universpath in spacetime
German Weltlinie
- Weltliniepath in spacetime
Japanese 世界線
- 世界線 (sekaisen)path in spacetime
Polish linia świata
- linia światapath in spacetime
Cite this entry
APA
world line. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/world%20line
MLA
“world line.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/world%20line. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “world line,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/world%20line.
Source: world line on Wiktionary, CC BY-SA 4.0.