Pri'mo-gēn'i-tūre, n.

(53), n. [Lat. primus, first, and genitura, a begetting, birth, generation; Fr. primogéniture, Pr., Sp., Pg., & It. primogenitura, Lat. primogenitus, first-born.]

1. The state of being born first of the same parents; seniority by birth among children.
2. (Eng. Law.) The exclusive right of inheritance which belongs to the eldest son or daughter. Thus, in England, the right of inheriting the estate of the father belongs to the eldest son, and in the royal family, the eldest son of the king is entitled to the throne by primogeniture. Among the female children, the crown descends by right of primogeniture to the eldest daughter only, and her issue.

Blackstone.