You know what it looks like… but what is it called?
TAKE THE QUIZ“fabricius”
We have one entry that includes the term fabricius.
bursa of Fabricius
noun phrase: a lymphoid organ that opens into the cloaca of birds and functions in B cell production
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- Before we went to her house, Hannah told us her aunt was a flibbertigibbet.


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Merriam-Webster unabridged