the power or right to prohibit or reject a proposed or intended act (especially the power of a chief executive to reject a bill passed by the legislature)
vote against; refuse to endorse; refuse to assent; "The President vetoed the bill"
(computer science) executing the same set of instructions a given number of times or until a specified result is obtained; "the solution is obtained by iteration"
(computer science) a single execution of a set of instructions that are to be repeated; "the solution took hundreds of iterations"