Learn how to say Adolescence correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word adolescence:
the period following the onset of puberty during which a young person develops from a child into an adult:
Mary spent her childhood and adolescence in Europe
during adolescence teenagers often experience violent mood swings
late Middle English: from French, from Latin adolescentia, from adolescere ‘grow to maturity’ (see adolescent)