This is more specifically referred to as a first cousin A parent of a first cousin is an aunt or uncle. Cousin, a person whose last common ancestor with a given individual is at least two generations away The meaning of cousin is a child of one's uncle or aunt How to use cousin in a sentence. A patrilineal or paternal cousin is a father’s niece or nephew, and a matrilineal or maternal cousin a mother’s.
A child of a person's aunt or uncle, or, more generally, a distant (= not close) relation One's second cousin is a child of one's parent's first cousin One's first cousin once removed is a child of one's first cousin (or, conversely, a first cousin of one's parent)] The son or daughter of an uncle or aunt One related by descent in a diverging line from a known common ancestor
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