As a Noun: 1. A short tube, usually tapered, that fits into one end of an icing bag. Used for making lines and decorations with icing. English = nozzle. Note: 1. There appears to be no commonly used Auslan sign for NOZZLE (but some signers represent this visually using these depicting signs, once they have established the topic). If you know a sign for NOZZLE used by you or other Auslan users (deaf people or interpreters) please go to "Report missing sign" and supply details. Thank you.