复数:patellas 复数:patellae
1.【解】髌,膝盖(骨);膝节;【动】杯状部;(龙虱科昆虫的)吸跗节;【植】球状裸子器,小盘
2.(古代罗马的)小盘子
1.the bone at the front of your knee. The usual word for this is kneecap.