pubescence vs puberty

pubescence and puberty both are nouns.

Word	Noun	Adjective	Verb	Adverb
pubescence	Yes	No	No	No
puberty	Yes	No	No	No

As nouns, pubescence and puberty are synonyms defined as:

pubescence and puberty: the time of life when sex glands become functional

pubescence (noun)	puberty (noun)
the time of life when sex glands become functional	the time of life when sex glands become functional