Final answer:
The mons pubis is the encapsulated area of fat anterior to the female genitalia that increases in size during puberty and becomes covered with pubic hair.
Step-by-step explanation:
The encapsulated area of fat anterior to the female genitalia that increases in size during puberty is called the mons pubis. The mons pubis is a pad of fat located over the pubic bone which, after puberty, becomes covered with pubic hair. It is part of the external female reproductive structures, collectively referred to as the vulva, which also includes the labia majora and labia minora that protect the urethra and entrance to the reproductive tract.