Final answer:
Larger lesions similar to vesicles that appear in cases of second-degree burns are known as bullae. They are larger blisters indicating deeper skin damage and require sterile care to heal properly.
Step-by-step explanation:
The lesions that are like vesicles but larger and occur in cases of second-degree burns are called bullae. Unlike vesicles, which are small fluid-filled blisters typically less than 5 mm in diameter, bullae are larger, measuring at least 5 mm. They are part of the blistering that results from the deeper damage to the epidermis and a portion of the dermis seen in second-degree burns. To prevent infection, it is crucial to keep the area clean and sterile, allowing the burn to heal within several weeks.