遭そう遇ぐう説せつ

noun

tidal hypothesis; near-collision hypothesis

Astronomy term for a historical hypothesis about the origin of the solar system, proposing that a close encounter or near-collision with another star pulled material from the sun to form planets. Now largely superseded by the nebular hypothesis.

• 遭そう遇ぐう説せつは、太たい陽よう系けいの起き源げんに関かんする古ふるい仮か説せつの一ひとつです。

  The tidal hypothesis is one of the old hypotheses about the origin of the solar system.

• 現げん在ざいでは、遭そう遇ぐう説せつよりも星せい雲うん説せつの方ほうが広ひろく受うけ入いれられています。

  Nowadays, the nebular hypothesis is more widely accepted than the near-collision hypothesis.