Roche limit

noun
\ˈrȯsh-, ˈrōsh-\

Definition of Roche limit 

: the distance from a planet's center within which a satellite can neither approach nor reside without being disrupted by tidal forces

First Known Use of Roche limit

1889, in the meaning defined above

History and Etymology for Roche limit

English A. Roche †1883 French mathematician

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The first known use of Roche limit was in 1889

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