ampullula

noun
am·​pul·​lu·​la | \ am-ˈpu̇l-yə-lə, -ˈpəl- How to pronounce ampullula (audio) \
plural ampullulae\ -​ˌlē How to pronounce ampullulae (audio) \

Medical Definition of ampullula

: a minute ampulla (as of the lymphatics or lacteals)