1. autocancel - Noun
2. autocancel - Verb
autocancel (third-person singular simple present autocancels, present participle (UK) autocancelling or (US) autocanceling, simple past and past participle (UK) autocancelled or (US) autocanceled)
(transitive) To cancel (a previously posted message on Usenet) automatically.
autocancel (plural autocancels)
A Usenet control message, generated automatically, that cancels a previously posted message.