(of an entity or event) having within itself the purpose of its existence or happening.
a toxin or poisonous chemical formed within the body and acting against it. noun any poison or toxin formed in the organism upon which it acts See autointoxication autotoxin au·to·tox·in (ô’tō-tŏk’sĭn) n. A poison that acts on the organism in which it is generated. au’to·tox’ic adj.
a transformer having a single coil that serves as both a primary coil and a secondary coil. noun a transformer in which part of the winding is common to both primary and secondary circuits