internal rate of return
n (Banking & Finance) an interest rate giving a net present value of zero when applied to the expected cash flow of a project. Its value, compared to the cost of the capital involved, is used to determine the project's viability
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014