na-adjective, noun
Primarily a technical or biological term for female sex or characteristics. In everyday language, 女性 (じょせい) or 雌 (めす) are more common.
この種の雌性個体は一回の産卵で数百の卵を産む。
The female individuals of this species lay several hundred eggs in a single spawning.
雌性ホルモンの分泌が妊娠の維持に重要である。
The secretion of female hormones is important for maintaining pregnancy.
Compound of 雌 (し, 'female') and 性 (せい, 'sex, nature'). A Sino-Japanese technical term.