internal rate of returnglossary / internal rate of return Accounting. A discounted-cash-flow method of evaluating a long-term project, used to determine the actual return on an investment. — Abbr. IRR. 词条贡献者 双语律师Stephanie,毕业于法国一流的高级翻译学院,擅长翻译各类与上诉案件相关的法律文件。