As a Noun: 1. A CORONARY BYPASS means veins or arteries are taken from other parts of the body and attached to heart arteries. This improves blood supply to the heart. Note: 1. There appears to be no commonly used Auslan sign for CORONARY BYPASS. If you know a sign for CORONARY BYPASS used by you or other Auslan users (deaf people or interpreters) please go to "missing sign feedback" and supply details. Thank you.