the physical or biological developments inside of and on the external surface of the body that take place during pubescent years, such as the growth of sexual organs, breasts and others sexual features, and also the initial instance that semen is produced and ejaculated for males, and the onset of menses for females.

ADOLESCENT SEX CHANGES: "Adolescent sex changes can begin in some girls as young as age 8."
Cite this page: N., Pam M.S., "ADOLESCENT SEX CHANGES," in, April 7, 2013, (accessed May 7, 2021).