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world-line

British

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

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world-line

I shall have to replace you immediately in your normal world-line, for your absence would constitute as noticeable a flaw as that of the planet.

From Freudian Slip by Franklin Abel

Revolving in the time dimension means telescoping in the world-line….

From Astounding Stories of Super-Science January 1931 by Various

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023