Adjective
time-like (comparative more time-like, superlative most time-like)
Alternative spelling of timelike
Paths of particles and light beams in spacetime are represented by time-like and null (light-like) geodesics, respectively. Source: Internet
A time-like curve can be understood as one where the interval between any two infinitesimally close events on the curve is time-like, and likewise for light-like and space-like curves. Source: Internet
Like the proper time of time-like intervals, the proper distance of space-like spacetime intervals is a real number value. Source: Internet
More commonly a space-like hypersurface is defined technically as a surface such that the normal vector at every point is time-like, but the definition above may be somewhat more intuitive. Source: Internet
The Minkowski metric is usually denoted by and can be written as a four-by-four matrix: : where the Landau–Lifshitz time-like convention is being used. Source: Internet
Time-like interval : For two events separated by a time-like interval, enough time passes between them that there could be a cause–effect relationship between the two events. Source: Internet