by 1788 as an English word in physiology, shortened from medieval Latin bursa mucosa "mucus pouch," from Medieval Latin bursa "bag, purse," from Late Latin bursa, variant of byrsa "hide," from Greek byrsa "hide, skin, wineskin, drum," which is of unknown origin; compare purse (n.).
权威例句
1. The ulcer has perforated into the lessor omental bursa.
溃疡穿透到小网膜囊.
2. Sufferred from disease of pig bursa cercaria to there are those symptoms?
患了猪囊尾蚴病有那些症状?
3. Results: CT images showed synovial proliferation of bursa carpi ulnaris, the tendines were disarranged.