puberty

That our Post-Puberty Dennis the Menace appears to be lost in such deep slumber seems only understandable.

Puberty, pū′bėr-ti, n. the age of full development: early manhood or womanhood: the period when a plant begins to flower.

Puberty is reached relatively late, usually between the fourteenth and sixteenth years.

Puberty comes to both sexes as early as at ten and eleven years.

By "Puberty" is meant the age at which a woman begins her period of possible child-bearing experience.

Puberty marks its advent, although the exact sign of its arrival is hard to determine.