双そう生せい

noun, noun which may take the genitive case particle 'no'

twins; bearing twins

Refers to the state of being twins or giving birth to twins. Often used in compounds like 双生児 (twin children).

• 彼かの女じょは双そう生せいの姉し妹まいです。

  She is a twin sister.

• 双そう生せい児じは一いち卵らん性せいと二に卵らん性せいに分わけられる。

  Twins are divided into identical and fraternal.