Definition of bursa of Fabricius in English:
A glandular sac opening into the cloaca of a bird, producing B cells.
- Males with large badges have a smaller bursa of Fabricius than do average males.
- These drugs prevent development of the bursa of Fabricius and so selectively reduce humoral immunocompetence without influencing macrophages or cell-mediated immunity.
- Birds that possessed a bursa of Fabricius were classified as young birds in their second or third calendar year.
Definition of bursa of Fabricius in:
- British & World English dictionary
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