Iteration

noun

1. Recital or performance a second time; repetition.
2. A variation or version.

   "The architect drafted several iterations of the floorplan before deciding on his final design."

3. The use of repetition in a computer program, especially in the form of a loop.
4. A single repetition of the code within such a repetitive process.

   "The code calculates the appropriate value at each iteration."