- the root of any of various plants of the SW U.S. and Mexico, used as a substitute for soap
- any of these plants, esp. the soap plant
Origin: MexSp < Nahuatl a:molli, lit., soap-root
Used by arrangement with John Wiley & Sons, Inc.
- The root, bulb, or another plant part of several chiefly western North American plants, such as certain species of Agave, Chlorogalum, and Yucca, used as a substitute for soap.
- A plant so used.
Origin: American Spanish, from Nahuatl amolli.