Wiktionary
prepubertal
a. Before puberty.
WordNet
prepubertal
adj. (especially of human beings) at the age immediately before puberty; often marked by accelerated growth [syn: prepubescent]
Usage examples of "prepubertal".
I suspect, the culture, too, may have a role to play, as it is a culture in which undue chemical stress, through guilt and worry, is not placed on the system either in the prepubertal or pubertal years.