The time period of a human being's majority; the time during which a human being has reached physical maturity, and ending with its death.
The state or condition of a human being once it has reached physical maturity, and is presumed to have reached a state of psychological maturity, to wit: once it has become an adult.
The period between childhood and adolescence, between the ages of about 9 and 11 for girls, and 10 and 12 for boys.