a large blister containing serous fluid

a rounded prominence

a round seal attached to a papal bull, typically one made of lead

(in Jamaican cuisine) a small, round, flat cake made with flour, molasses, brown sugar, and various spices and flavourings such as ginger, nutmeg, coconut, and pineapple

she sells bakery items iike bullas in London

we love to eat bulla cake with avocado