n, pl  bur*sas  or  bur*sae   :  a bodily pouch or sac: as  a  :  a small serous sac between a tendon and a bone  b  :  BURSA OF FABRICIUS bur*sal adj 
 
 
 
Similar sounding terms:   brace   bruise 
 
Published under license with Merriam-Webster, Incorporated.  © 1997-2024.