bursa

名词 bursa:

1. a city in northwestern Turkey
   同义词：Brusa
2. a small fluid-filled sac located between movable parts of the body especially at joints

bur.sa

n.（名词）
【复数】 bur.sae[-sô] 或 bur.sas 【解剖学】
A sac or saclike bodily cavity, especially one containing a viscous lubricating fluid and located between a tendon and a bone or at points of friction between moving structures.
囊：一种囊或囊状物，尤指任何含有粘性润滑液且位于肌腱和骨头间或运动部位之间摩擦点的小液囊

来源：
Late Latin [purse, pouch]
后期拉丁语 [囊，小袋]
from Greek [skin, wineskin]
源自 希腊语 [皮肤，皮制酒袋]

【引伸】
bur.sal
adj.（形容词）