As a Noun: 1. A developmental condition characterized by difficulties with social communication and interaction, and restricted and repetitive behaviours and interests. English = autism. 2. As a Verb or Adjective: 1. About or relating to autism. English = autistic. Note: 1. This sign is used by some Auslan signers for ‘autism’. However, it has been reported that some people with autism and/or people who work and support people with autism are not comfortable with this sign and prefer Auslan signers use the other sign listed in Signbank for ‘autism’.