What term refers to sexual intercourse between a man and a woman?

The term that refers specifically to sexual intercourse between a man and a woman is coitus. This word comes from Latin roots and is used in both medical and biological contexts to describe the act of sexual union. It is important in discussions of human reproduction, sexual health, and anatomy.

The other terms listed do not relate to sexual intercourse. The cerebrum is the largest part of the brain, responsible for various functions such as thought, movement, emotion, and sensation. The coccyx is the small, triangular bone at the base of the vertebral column, commonly referred to as the tailbone. A cataract is a clouding of the lens in the eye, which can lead to decreased vision and is unrelated to sexual health. Thus, coitus is the only choice that distinctly aligns with the definition of sexual intercourse.