entity assumptionglossary / ENTITY ASSUMPTION entity assumption. The presumption that a business is a unit separate from its owners and from other firms. [Cases: Corporations1. 3. C.J.S. Corporations § 8.] 词条贡献者 双语律师Peter,毕业于法国一流的高级翻译学院,擅长翻译涉及基础建设领域的法律文件。