primogeniture
noun [ U ] law specialized uk/ˌpraɪ.məʊˈdʒen.ɪ.tʃər/ us/ˌpraɪ.moʊˈdʒen.ə.tʃɚ/
长嗣继承权（或制）
the custom by which all of a family's property goes to the oldest son when the father dies
英汉双解词典收录81607条英汉双解翻译词条，基本涵盖了全部常用单词的读音、翻译及用法，是英语学习的有利工具。