プログレッシブ和英中辞典(第4版)の解説
ぶんりつ【分立】
〔分離〕separation；〔独立〕independence
立法，行政，司法権の分立
the separation [independence] of legislative, administrative and judicial authority
野党の分立傾向が著しい
There is a strong tendency among the opposition parties to 「act independently of one another [go their separate ways].
彼は子会社を分立した
He set up an independent subsidiary company.