hydrogen burning

/HH AY1 D R AH0 JH AH0 N B ER0 N IH0 NG/
noun
  1. 1

    (physics, astronomy, idiomatic) The nucleosynthesis process, in stars of less than 1.2 solar mass, in which hydrogen is converted to helium, deuterium and some lithium.

  2. 2

    Used other than figuratively or idiomatically: thermochemical oxidation of diatomic hydrogen gas.

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