(also blood relative)
A person who is related to another by birth rather than by marriage.
- Which do you think is the blood relative and which the relation because of marriage?
- Christopher isn't a blood relative of Tony's, but rather an in-law.
- Even though he is not your blood relative, since your parents are married, you two are family and will always be in each other's lives.
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Line breaks: blood re|la¦tion
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