patella
n.
"knee cap," 1690s, from Latin patella "pan, kneecap," diminutive of patina "pan" (see pan, n.). So called from its shape. Related: Patellar; patelliform.
〔李〕n. 小盘 [pat =flatdish] ←-el，-ella [L] 表示“小的…（物）”
〔李〕n. 小盘 [pat =flatdish] ←-el，-ella [L] 表示“小的…（物）”