As a Noun: 1. A substance that exists in the fat, tissues, and blood of all animals. Too much of it in your blood can cause heart disease. English = cholesterol. Note: 1. There appears to be no commonly used Auslan sign for CHOLESTEROL. If you know a sign for CHOLESTEROL used by you or other Auslan users (deaf people or interpreters) please go to "missing sign feedback" and supply details. Thank you.