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bursa of Fabricius

noun

, Ornithology.
  1. a lymphoid gland of the cloaca in birds, believed to function in disease resistance, and closing or disappearing as the bird ages.


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Word History and Origins

Origin of bursa of Fabricius1

After Hieronymus Fabricius ab Aquapendente (1537–1619), Italian anatomist, who discovered it
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Example Sentences

He determined that cells produced in an organ found in birds—called the bursa of Fabricius—were responsible for antibody production, and that their development was distinct from that of T cells.

He determined that cells produced in an organ found in birds — called the bursa of Fabricius — were responsible for antibody production, and that their development was distinct from that of T-cells.

From Nature

It recounted an 'accidental' finding about the bursa of Fabricius, an organ unique to birds that at the time was thought to have a hormonal role in growth and development.

From Nature

The other type of lymphocyte, the B-cell, undergoes differentiation, in chickens, at least, in an organ called the bursa of Fabricius.

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