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circumbinary ‎(not comparable)

  1. (astronomy) Of, pertaining to, or having an orbit around a binary star.
    • 2014 Jan. 15, Stefan Lines et al., "Forming Circumbinary Planets: N-body Simulations of Kepler-34," The Astrophysical Journal Letters, vol. 782, L11 (retrieved 11 Feb 2014):
      The effect of a reduced collision rate at large orbital radii on the formation timescale of planets is possibly explained by Alexander (2012) who suggests that circumbinary planets have more time to form than planets around single stars.