source: By Huw Williams (Huwmanbeing) - Own work, Public Domain

noun (plural sororities) North American

a society for female students in a university or college, typically for social purposes.: 概して社交的な目的のための、総合大学や単科大学の女性生徒の社交クラブ

｟米｠ 〖集合的に〗女子学生の社交クラブ(→ fraternity); 婦人会

mid 16th century: from medieval Latin sororitas, or from Latin soror ‘sister’ (on the pattern of fraternity).