1. a large blister or fluid-filled bump on the skin
Usage: medical
2. a rounded seal or pendant attached to an official document
Usage: historical
3. a hollow rounded projection or swelling
Usage: anatomy

Examples

• The burn caused a large bulla to form on her arm.
• The doctor examined the fluid-filled bulla carefully.
• The papal bulla bore the official seal of the Vatican.
• Medieval documents often featured a golden bulla.
• The anatomist pointed out the bulla in the skull.
• A bulla can develop after severe skin irritation.