閨閥 is read as けいばつ (keibatsu) and means clan.
けいばつ
keibatsu
けいばつせいじ
government by relatives of ruler's wife
はばつ
clique
ざいばつ
rich person
ばつ
がくばつ
alma mater clique
とうないはばつ
intra-party faction
やすだざいばつ
Yasuda Zaibatsu
みついざいばつ
Mitsui Zaibatsu
むはばつ
belonging to no (political) faction
ほくようぐんばつ
Beiyang Army
とうばつ
party faction
しんこうざいばつ
new zaibatsu (formed after the Meiji period)