Parturiency is the medical term used to describe the act of giving birth. Synonyms for parturiency include childbirth, delivery, labor, and parturition. These words describe the physical process of the baby exiting the mother's uterus and entering the world. The term labor includes both the process of giving birth and the time leading up to it, during which the mother's uterus contracts and the cervix slowly dilates. Parturition is a more technical term than childbirth, and is typically used in medical contexts. Delivery can refer to both the physical act of giving birth, as well as the act of receiving a package or goods.