As a Noun: 1. An EPIDURAL is a type of anaesthetic which is injected into a person's spine so that they cannot feel anything from the waist downwards. EPIDURALS are sometimes given to women when they are giving birth. Note: 1. There appears to be no commonly used Auslan sign for EPIDURAL. If you know a sign for EPIDURAL used by you or other Auslan users (deaf people or interpreters) please go to "report missing sign" and supply details. Thank you.