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patella (n.)
[patella 词源字典]
"knee cap," 1690s, from Latin
patella
"pan, kneecap," diminutive of
patina
"pan" (see
pan
(n.)). So called from its shape. Related:
Patellar
;
patelliform
.
[patella etymology, patella origin, 英语词源]
[patella 词源字典]