Definition of iteration

• (computer science) a single execution of a set of instructions that are to be repeated; "the solution took hundreds of iterations"
• doing or saying again; a repeated performancewordnetweb.princeton.edu/perl/webwn
  
• Iteration means the act of repeating a process usually with the aim of approaching a desired goal or target or result. Each repetition of the process is also called an "iteration", and the results of one iteration are used as the starting point for the next iteration.en.wikipedia.org/wiki/Iteration