sacculeEnglishOxford Dictionary of Englishsaccule /ˈsakjuːl / ▸ noun Biology Anatomy a small sac, pouch, or cyst. ▪ another term for sacculus – DERIVATIVES saccular /ˈsakjʊlə / adjective sacculated adjective sacculation noun– ORIGIN mid 19th century: anglicized form of Latin sacculus (see sacculus).