matriarch UK /ˈmeɪtɹɪˌɑːk/US /ˈmeɪtɹiɑɹk/ noun4 •A female leader of a family, a tribe or an ethnic or religious group.This female hyena also gets erections and is larger, more aggressive than the male hyenas and lives in matrilineal clans of up to 80 individuals governed by an alpha female matriarch. — 2022 •The dominant female in a family group of elephants. •A female founder of a political or religious movement, an organization or an enterprise. •(Northern-England) A strong and domineering older woman; a battle axe. formsmatriarchs