program comment
explanatory note in the source code of a computer program, skipped during its compilation or interpretation and without effect on execution
en-US/ˈpɹoʊɡˌɹæm ˈkɑmɛnt/
en-GB/ˈpɹəʊɡɹæm ˈkɒmɛnt/
explanatory note in the source code of a computer program, skipped during its compilation or interpretation and without effect on execution