双そう星せい

noun

amphiaster; diaster

Biology term for a structure formed during cell division; used in technical contexts.

• 細さい胞ぼう分ぶん裂れつの過か程ていで双そう星せいが形けい成せいされる。

  An amphiaster forms during the process of cell division.

noun

double star; visual double

Astronomy term for a pair of stars that appear close together in the sky; may be a true binary or an optical double.

See also: 二重星 (にじゅうせい)

• 望ぼう遠えん鏡きょうで双そう星せいを観かん測そくした。

  I observed a double star through the telescope.