What is "decoctions"

Usage examples of "decoctions".

For diarrhea red pepper and decoctions of blackberry root and of pine leave were given.

Chills and fever were treated with decoctions of dogwood bark, and fever patients who craved something sour, were given a weak acid drink, made by fermenting a small quantity of meal in a barrel of water.

I am embarrassed to make decoctions and to mix them with synthesized ditch water.

He was making solutions, decoctions, infusions of every kind of foodstuff the food shop he'd burglarized contained.