bursa of Fabricius


noun Ornithology.

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

Origin of bursa of Fabricius

after Hieronymus Fabricius ab Aquapendente (1537–1619), Italian anatomist, who discovered it
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019