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third-degree relative

(... deh-GREE REH-luh-tiv)
A way of describing how family members are related to each other when there are two other family members in the blood line between them. Examples of a third-degree relative are a first cousin, great-grandparent, great-aunt, great-uncle, great-niece, great-nephew, great-grandchild, half-aunt, or half-uncle. Also called TDR.
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