What does bitterwood mean?
Bitterwood is the name given to the intensely bitter bark and wood of certain trees, most notably members of the genera Quassia and Picrasma. Because of its pronounced bitterness, the substance has long been valued in traditional and formal medicine as a 'bitter tonic,' believed to stimulate appetite and aid digestion. It has also served practical non-medicinal purposes: infusions of bitterwood have been used as a natural insecticide, including against lice on livestock and poultry. The word can refer either to the material itself — chips, shavings, or extracts of the wood — or, by extension, to the trees that produce it. Bitterwood is primarily a botanical and pharmacological term today, appearing more often in historical texts, herbal references, and scientific literature than in casual conversation. Its memorable bitterness is its defining trait, giving the word a distinctive character within the vocabulary of medicinal plants.
nounThe bitter-tasting wood or bark of certain trees and shrubs, especially species of Quassia and Picrasma in the simaroubaceous family, used medicinally as a bitter tonic and insecticide. The term also refers to the trees themselves that yield this material.
- The bitter bark or wood of trees of the genus Quassia or Picrasma, valued as a medicinal bitter tonic and as an insecticide.
- Any of the trees themselves that yield this bitter wood.
"The herbalist ground dried bitterwood into a powder to prepare a traditional digestive tonic."
"Pharmacists once stocked extract of bitterwood as a standard remedy for poor appetite and indigestion."
"Farmers sprayed a solution made from bitterwood shavings on their crops as a natural insecticide."
Rarely pluralized; the plural may refer to multiple species or specimens of bitterwood trees.
"Several bitterwoods of the genus Picramnia grow in the American tropics."
Bitterwood is so intensely bitter it was traditionally used both as medicine for humans and as an insecticide — sometimes even to rid poultry of lice.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of bitterwood
Bitterwood is a transparent English compound formed from the adjective 'bitter' and the noun 'wood,' describing the tree material's famously acrid taste. The compound arose as a descriptive common name for trees of the Quassia and related genera, whose wood and bark were imported into Europe from the Caribbean and South America during the colonial era for use in tonics. Related names include 'quassia,' which honors the Surinamese healer Graman Quassi, and 'bitter ash.'
How bitterwood is actually used
A somewhat technical or historical term, encountered chiefly in pharmacology, botany, and traditional-medicine contexts rather than everyday speech.
Easily confused with bitterwood
Wormwood is an entirely different plant (Artemisia absinthium) used to flavor absinthe, whereas bitterwood refers to trees such as Quassia whose wood is used as a bitter tonic.