Apastron

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Apastron \Ap*as"tron\, n. [Gr. ? from + ? star.] (Astron.)
     That point in the orbit of a double star where the smaller
     star is farthest from its primary.
     [1913 Webster] Apathetic