autogenic 
[ˏɔ:tә'dʒenik]
adj.
自生的
autogenic[ adj ]
originating within the body
<adj.all>
autogenic \autogenic\ adj.
1. self-generated; self-produced.
Syn: autogenous
[PJC]
2. (Physiology) originating within the body; -- oposite of
{heterogenous}.
Syn: autogenous
[WordNet 1.5]