Adolescence | Definition, Characteristics, & Stages | Britannica
May 4, 2026 · Adolescence is the transitional phase of growth and development between childhood and adulthood. The World Health Organization (WHO) defines an adolescent as any person between …
ADOLESCENT Definition & Meaning - Merriam-Webster
3 days ago · The meaning of ADOLESCENT is a young person who is developing into an adult : one who is in the state of adolescence. How to use adolescent in a sentence.
Adolescence - Wikipedia
Adolescence (from Latin adolescere 'to mature') is a transitional stage of human physical and psychological development that generally occurs during the period from puberty to adulthood …
Who Is Considered an Adolescent? Ages and Stages
Mar 15, 2026 · The most widely cited definition comes from the WHO and related UN agencies (UNICEF, UNFPA), which place adolescence at ages 10 through 19. This range is meant to capture …
APA Dictionary of Psychology
Apr 19, 2018 · n. the period of human development that starts with puberty (approximately 10 to 12 years of age) and ends with physiological and neurobiological maturity, shown in neuroscientific …
Adolescent health - World Health Organization (WHO)
May 14, 2026 · Adolescence is the phase of life between childhood and adulthood, from ages 10 to 19. It is a unique stage of human development and an important time for laying the foundations of good …
Adolescent Development - Cleveland Clinic
Adolescence is the period of transition between childhood and adulthood. Children entering adolescence are going through many changes in their bodies and brains.