high-mass x-ray binary
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high-mass x-ray binary[¦hī‚mas ¦eks‚rā′bī‚ner·ē]
A binary system consisting of a massive (greater than 5 solar masses), early-type star and a neutron star or black hole that accretes material through a stellar wind or Roche-lobe overflow, resulting in the emission of hard x-rays. Abbreviated HMXRB.