adolescence n 1: the time period between the beginning of puberty and adulthood 2: in the state that someone is in between puberty and adulthood
Adolescence \Ad`o*les"cence\, n. [Fr., fr. L. adolescentia.] The state of growing up from childhood to manhood or womanhood; youth, or the period of life between puberty and maturity, generally considered to be, in the male sex, from fourteen to twenty-one. Sometimes used with reference to the lower animals. [1913 Webster]
ADOLESCENCE, persons. That age which follows puberty and precedes the age of majority; it commences for males at fourteen, and for females at twelve years completed, and continues till twenty-one years complete.