Entry 3 senses Webster, 1913 Patriarchate /(pā`trĭ*är"kā̇t)/ · Pa·tri·ar·chate · IPA /ˈpeɪtɹiˌɑɹkət/ 01 n. The office, dignity, or jurisdiction of a patriarch. 1. The office, dignity, or jurisdiction of a patriarch. 2. The residence of an ecclesiastic patriarch. 3. A patriarchal form of government or society. See Patriarchal, a., 3.(Ethnol.) See: Patriarchal