Wiktionary
main-sequence
a. (context star English) Of or dealing with a major group of star forming a band stretching from upper left to lower right on a Hertzsprung-Russell diagram when being plotted by luminosity and surface temperature
Usage examples of "main-sequence".
If Multivac works at its present speed for the remaining lifetime of the sun as a main-sequence star, it will not have gone through a duodecillionth of all the possible structural variations of the genes that might exist, let alone the possible modifications introduced by their order on the chromosomes.