Half-sister
Is there a Spanish word for half-sister or half-brother. I have seen this answered as 'hermanastra' but that means 'step sister'. In English, a step sister and half-sister are quite different. One has a blood relationship to a half-sibling but not with a step sibling.
2 Answers
In my travels I've only heard "media hermano/a."
Medio hermano/a, that's correct but also says a lot: Hermanastro/a