capitulum
/kəˈpɪtjʊləm/noun
(pl. capitula /-lə/)
- Anatomy & Biology a compact head of a structure, in particular a dense flat cluster of small flowers or florets, as in plants of the daisy family【剖, 生】小头, 骨端。
词源
early 18th cent.: from Latin， diminutive of caput 'head'.