WordReference Random House Unabridged Dictionary of American English © 2025
main′ se′quence, [Astron.]
  1. Astronomya narrow band in the Hertzsprung-Russell diagram in which 90 percent of all observed stars are plotted.
  • 1925–30

'main sequence' also found in these entries (note: many are not synonyms or translations):
blue straggler - dwarf star - red dwarf

Forum discussions with the word(s) "main sequence" in the title:


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