Schwarzschild radius

noun Schwarz·schild radius \ˈshwȯrtˌshild-, ˈs(h)wȯrtsˌchīld-; ˈshvärtˌshilt-\

Definition of Schwarzschild radius

  1. :  the radius of the spherical boundary within which a given mass (as of a star) must collapse to become a black hole; also :  the distance of the event horizon from the center of a black hole

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Origin and Etymology of schwarzschild radius

after Karl Schwarzschild †1916 German astronomer

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a trip made at another's expense

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