noun
female emperor (of Japan)
Refers specifically to a woman who has ascended the Chrysanthemum Throne in her own right, as opposed to an empress consort.
推古天皇は日本初の女性天皇とされている。
Empress Suiko is considered Japan's first female emperor.
女性天皇の即位について議論が続いている。
Debate continues over the enthronement of a female emperor.
Compound of 女性 (woman) and 天皇 (emperor). The term is modern, used in historical and political contexts to distinguish female sovereigns from male emperors.