n. In English law, a personal chattel that, contrary to the nature of chattels, by special custom descends to an heir with the inheritance, being such a thing as cannot be separated from the estate without injury to it, as jewels of the crown, charters, deeds, and the like. The term is sometimes loosely applied to personal property left by will or settled so as to descend like an heirloom proper; such property is distinctively called an heirloom by devise or a quasi-heirloom.n. Hence Any personal possession that passes from generation to generation in a family or a community; any article or characteristic transmitted by ancestors.