bursa of Fabricius

noun phrase

bursa of Fa·​bri·​cius -fə-ˈbrē-sh(ē-)əs  -ˈbri- 

-s(ē-)əs

: a lymphoid organ that opens into the cloaca of birds and functions in B cell production

Word History

Etymology

Johan C. Fabricius †1808 Danish entomologist

First Known Use

1887, in the meaning defined above

Medical Definition

bursa of Fabricius

noun

bursa of Fa·​bri·​cius -fə-ˈbrish(-ē)-əs 

: a blind glandular sac that opens into the cloaca of birds and functions in B cell production