Final answer:
Puberty refers to a period of rapid skeletal and sexual maturation that occurs mainly in early adolescence. It is the period of transition between childhood and adulthood, and includes a growth spurt, development of secondary sexual characteristics, and significant cognitive and psychosocial changes.
Step-by-step explanation:
Puberty refers to a period of rapid skeletal and sexual maturation that occurs mainly in early adolescence. It is the period of transition between childhood and adulthood, and is generally considered to start with the onset of sexual maturation. During puberty, adolescents experience a growth spurt, develop secondary sexual characteristics, and undergo significant cognitive and psychosocial changes.