helium flash

noun

astronomy the explosive burning of helium in the case of a star of low mass that occurs when the core is so dense that the matter has become degenerate. The burning causes a rapid rise in temperature until it is so high that the gas ceases to be degenerate, after which there is a rapid expansion

Nearby words

  1. helipad,
  2. heliport,
  3. heliskiing,
  4. helistop,
  5. helium,
  6. helium i,
  7. helium ii,
  8. helix,
  9. hell,
  10. hell gate

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012