Pronunciation: (ô-toj'u-nus), [key]
1. self-produced; self-generated.
2. Physiol.pertaining to substances generated in the body.
3. Metall.self-fused, without the addition of solder or the application of an adhesive: an autogenous weld between two pieces of the same metal.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.