In the pre-modern alchemy of Paracelsus, a clyssus, or clissus, was one of the effects, or productions of that art; consisting of the most efficacious principles of any body, extracted, purified, and then remixed.
In the pre-modern alchemy of Paracelsus, clyssus, or clissus, was a term of various meanings. In one sense, a clyssus consists of the most efficacious principles of any body, extracted, purified, and then remixed.