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Eddington limit

noun
  1. astronomy the theoretical upper limit of luminosity that a star of a given mass can reach; occurs when the outward force of the radiation just balances the inward gravitational force
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Word Origin

C20: named after A. S. Eddington (1882–1944), English astronomer and physicist
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