Herbalism · definition
A water-based preparation made by simmering or gently boiling plant material for a period of time.
How the term is used
Decoctions are often used for tougher plant parts such as roots, bark, or seeds.
Why it matters
It helps readers understand why herbal preparation depends on the plant part and intended use.
Where this fits in a practice
The guides explain the idea in context; the service pathways are there when reading is not enough. Educational content only — nothing here is medical or mental-health care.