development of secondary sexual characteristics development of secondary female sexual characteristics http://purl.obolibrary.org/obo/GO_0046543 https://www.wikidata.org/wiki/Q21103408 The process whose specific outcome is the progression of the secondary female sexual characteristics over time, from their formation to the mature structures. In female humans, these include growth of axillary and pubic hair, breast development and menstrual periods. Their development occurs in response to sex hormone secretion.