Final answer:
The union of two or more adjacent boils results in an inflammatory lesion called a carbuncle, which is a deeper infection caused by Staphylococcus bacteria.
Step-by-step explanation:
The union of two or more adjacent boils results in an inflammatory lesion that is called a carbuncle. Carbuncles are deeper infections and are typically caused by Staphylococcus bacteria. They are characterized by a pus-filled lesion that is often larger and more severe than a single boil.