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accretion disk
accretion diskn. A disk of interstellar material gathered into orbit by the gravitational field of a celestial object, such as a star or black hole, and gradually spiraling into the object.Translationsaccretion disk
accretion disk See black hole; mass transfer; quasar.accretion disk[ə′krē·shən ‚disk] (astronomy) A viscous structure consisting of gas lost by a red giant or supergiant flowing around a companion main-sequence star or compact object (white dwarf, neutron star, or black hole). |