noun
Indian quassia; quassia wood; picrasma wood
Refers to the tree Picrasma quassioides or its bitter wood, used in herbal medicine and as a bittering agent.
ニガキは漢方薬の原料として使われることがあります。
Quassia wood is sometimes used as an ingredient in traditional Chinese medicine.
このお茶にはニガキのエキスが入っています。
This tea contains quassia extract.
The name ニガキ (苦木) literally means 'bitter tree', from the extremely bitter taste of its wood and bark.