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Agency Dictionary

Decoction

nounPronunciation: /dɪˈkɒk.ʃən/

In Portuguese: Decocção

What does “Decoction” mean?

The process of extracting soluble chemicals and active compounds from tough plant materials by continuous boiling in water.

Etymology

From Old French decoction, from Latin decoctio, "a boiling down", from decoquere, made of de-, "down, away", and coquere, "to cook". The word has been in English since the late Middle Ages, in medical and herbal writing, both for the act of boiling a substance to draw out its properties and for the liquid obtained. Cook, concoct and kitchen go back to the same Latin verb.

Usage note

A term of pharmacy, herbal medicine and brewing. It is used for hard materials such as roots, bark and stems, which need boiling to release what they contain.

Synonyms

  • extract
  • brew
  • infusion
  • tisane

Often confused with

infusion
In an infusion hot water is poured over the plant and left to steep, as with tea leaves; in a decoction the plant is kept boiling in the water.

Word family

Concepts

Source editions

Where this entry comes from in the Agency editorial.

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Also from these editions: terms

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Also from these editions: concepts

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Updated
Cite this entry

“Decoction”. Agency Wiki, Agency Brasil. Published on November 11, 2026. https://www.agencybrasil.com/en/wiki/dictionary/decoction