Nevada Revised Statutes
Chapter 64 - General Provisions
NRS 64.030 - "Affinity" defined.

"Affinity" when applied to the marriage relation signifies the connection existing in consequence of marriage between each of the married persons and the blood relatives of the other.
[Part 1911 CPA § 533; RL § 5475; NCL § 9022]—(NRS A 1977, 183; 1985, 501)