Adult
An adult term describes all mature organisms, but usually refers to humans: people who are no longer children and have become adult men or women. Adults can now be defined from the biological aspect of a puberty, the law is 16 years of age or older, according to the law of marriage that is 19 years for men and 16 years for women and personal character of one's maturity and responsibility. These aspects of maturity are often inconsistent and contradictory. A person may be biologically mature, and have adult behavioral characteristics, but are treated as young children if they are under the age of statutory adulthood. On the contrary, one can legally be considered mature, but has no maturity and responsibility that reflects adult characters. "Adults" sometimes also mean "not considered appropriate for children", especially as an eufimism related to sexual behavior, such as adult entertainment, adult videos, adult magazines, and adult bookstores.