We don't have synonyms for bursa yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are burst, burma and bura.
°(anatomy) Any of the many small fluid-filled sacs located at the point where a muscle or tendonslides across bone. These sacs serve to reduce friction between the two moving surfaces.
°(anatomy) Any of the many small fluid-filled sacs located at the point where a muscle or tendonslides across bone. These sacs serve to reduce friction between the two moving surfaces.