A woman who rules or holds supreme power in a gynecocracy; a female ruler or dictator in a female-centered government.
From Greek 'gyne' (woman) and 'kratos' (power), plus '-crat' (ruler), meaning 'a female ruler' or 'one who rules in a female system.'
A gynecocrat would be as rare historically as the gynecocracies they rule—most female rulers like Elizabeth I and Catherine the Great actually ruled in patriarchal systems.
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