worldline

Physics.

(in relativity) the path of a particle in space-time.

Nearby words

world-shaking, world-view, world-weary, world-wide web, worldbeater, worldline, worldling, worldly, worldly-minded, worldly-wise, worldwide

Origin of worldline

First recorded in 1915–20

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for world-line

The time dimension and the world-line, he said sharply, excited in spite of himself.
Astounding Stories of Super-Science January 1931|Various
Revolving in the time dimension means telescoping in the world-line.
Astounding Stories of Super-Science January 1931|Various

British Dictionary definitions for world-line

world-line

noun

physics a line on a space–time path that shows the path of a body

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012