n. A very bitter triterpenoid lactone, extracted as white crystals from the quassia tree, used in traditional Chinese medicine
the GNU version of the Collaborative International Dictionary of English
n. The bitter principle of quassia, extracted as a white crystalline substance; -- formerly called quassite.
The Century Dictionary and Cyclopedia
n. The neutral bitter principle of quassia (Picræna excelsa).
Word Usage
"He also carried a few leaves of quassin doe, the antidote for ten-step poison, but as the poison's name implied, haste with the quassin doe was essential."