The Collaborative International Dictionary of English v.0.48:

Stahlism \Stahl"ism\ (st[aum]l"[i^]z'm), Stahlianism
\Stahl"ian*ism\ (-yan*[i^]z'm), n.
   The Stahlian theory, that every vital action is a function or
   operation of the soul.
   [1913 Webster]