Filtration
Separating solids from liquid through a porous medium, one of the practical operations found in alchemical laboratories.
Reference · Glossary
Glossary
A guide to the words used across this site and in the texts behind it. Definitions describe historical usage, not proven supernatural effects. A term may mean different things in different traditions; the tradition label tells you which sense is meant here.
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Fixation
An operation meant to make a volatile substance stable under heat, described in historical alchemical procedures.