worldline
Physics.
(in relativity) the path of a particle in space-time.
Origin of worldline
First recorded in 1915–20
Words nearby worldline
world-shaker,
world-shaking,
world-view,
world-weary,
worldbeater,
worldline,
worldling,
worldly,
worldly-minded,
worldly-wise,
worldwide
Example sentences from the Web for world-line
The time dimension and the world-line, he said sharply, excited in spite of himself.
Revolving in the time dimension means telescoping in the world-line.
British Dictionary definitions for world-line
world-line
noun
physics
a line on a space–time path that shows the path of a body