Definition
Copulation is a formal term for sexual intercourse, specifically the act of penetration of the vagina or anus by the penis. It is primarily associated with reproduction, but also serves as a means of pleasure and bonding. It's like saying 'mating' in the animal kingdom. Safe sex practices are essential during copulation to prevent STIs and unwanted pregnancies. Copulation is often studied in biology and reproductive health contexts. It's a more technical term for a very common human activity.