Home › Words › H › heroinismheroinismheroinism · noun — the qualities of a heroine or the display of those qualities; heroism performed by a female.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom heroine + -ism, modelled after heroism.nounThe qualities of a heroine or the display of those qualities; heroism performed by a female.heroin addictionDefinitions & examples from Wiktionary (CC BY-SA 3.0).