Half-sister with Mother as Common Parent

A female sibling who shares the genetic makeup inherited from only the biological mother. (NCI Thesaurus)

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Half-sister with Father as Common Parent

A female sibling who shares the genetic makeup inherited from only the biological father.

Half-sibling

A person’s brother or sister who has one parent in common.

Half-brother with Mother as Common Parent

A male sibling who shares the genetic makeup inherited from only the biological mother.

Half-brother with Father as Common Parent

A male sibling who shares the genetic makeup inherited from only the biological father.

Half Sister

A female sibling with whom you share a single parent.

Half Sibling

A sibling with whom you share a single parent.