soapnut

noun

noun

Etymology From soap + nut.

The drupe of Sapindus plants, containing saponins, which are a natural surfactant.

Soapnuts are the dried fruit of a tree called Sapindus mukorossi (Chinese Soapberry) and contain saponin, a natural surfactant that foams just like soap.2015, Beth Terry, Plastic-Free: How I Kicked the Plastic Habit and How You Can Too, Simon and Schuster, →ISBN:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.