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 资深译员Gianluca,毕业于亚洲顶尖的高级翻译学院,专注翻译各种与清洁与可再生能源有关的法律文件。