Definition of bitterbark
1 : any of several woody plants having bitter bark: such as a Australia (1) : a woody shrub (Alstonia constricta) with a bark sometimes used as a febrifuge (2) : native quince (3) : a shrub or small tree (Tabernaemontana orientalis) having evergreen leaves, sweet-scented flowers with slender tubes, and orange-colored fruit b : fever tree b c : cascara buckthorn
2 : the bark from a bitterbark especially when used medicinally
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Seen and Heard
What made you want to look up bitterbark? Please tell us where you read or heard it (including the quote, if possible).