stepsibling
suomi-englanti sanakirjastepsibling englanniksi
The child of one's stepparent from another relationship
{{quote-journal|en|date=April 19, 2007|author=Kate Murphy|title=Stepfamilies Try to Stretch Their Space|work=New York Times|url=http://www.nytimes.com/2007/04/19/garden/19step.html