An heirloom is an ornament or other object that has belonged to a family for a very long time and that has been handed down from one generation to another.
英汉词典释义
n.
祖传遗物;传家宝
The brooch is a family heirloom which came down to her from her great-grandmother.这枚胸针是她家的传家宝,是从她曾祖母那一代传到她手中的。This heirloom has been handed for several generations.此项产业已经数代相传了。
英英词典释义
Noun
1. (law) any property that is considered by law or custom as inseparable from an inheritance is inherited with that inheritance
2. something that has been in a family for generations