Home › Words › G › galactorrheagalactorrhea/ɡəˌlæktəˈɹiːə/galactorrhea · noun — lactation (the secretion of milk from nipples) that is not associated with childbirth or nursing.Definition from Wiktionary (CC BY-SA 3.0).galactorrhea is pronounced /ɡəˌlæktəˈɹiːə/.EtymologyFrom galacto- + -rrhea, from Ancient Greek γάλακτος (gálaktos, “milk”) + ῥέω (rhéō, “flow”).nounLactation (the secretion of milk from nipples) that is not associated with childbirth or nursing.Definitions & examples from Wiktionary (CC BY-SA 3.0).