bursa of Fabricius
noun
- Zoology a glandular sac opening into the cloaca of a bird, producing B-cells【动】腔上囊, 法氏囊（开口向鸟泄殖腔）。
词源
mid 19th cent. （in the Latin form bursa Fabricii）： from BURSA and a Latinized form of the name of Girolama Fabrici （1533-1619）， Italian anatomist.