patella
n. 膝盖骨；髌骨；膝节
形容词：patellar 名词复数：patellae
近义词：kneepan，kneecap，
英英释义
Noun
- a small flat triangular bone in front of the knee that protects the knee joint
- type genus of the family Patellidae: common European limpets
例句
用作名词(n.)
- She broke her patella in an accident.一次事故中她摔折了膑骨。