Definitions by Aceismike

cross sibling 

How the half siblings in each side of your family are related.

John's mom and dad are no longer together. John's dad now has a son named Jim. And John's mom now has a daughter named Jane. Jane and Jim are both blood related to John but are not family to eachother. Instead are related by cross siblings through John.

cross sibling by Aceismike December 18, 2023