sap·o·nin 
(săpə-nĭn, sə-pō-)
(săpə-nĭn, sə-pō-)n.
Any of various plant glycosides that form soapy lathers when mixed and agitated with water, used in detergents, foaming agents, and emulsifiers.
[From Latin sāpō, sāpōn-, hair dye, of Germanic origin.]
- absorptiometry
- absorption
- absorption nebula
- absorption spectrum
- absorptive
- absorptivity
- absquatulate
- abstain
- abstainer
- abstemious
- abstemiously
- abstemiousness
- abstention
- abstinence
- abstinent
- abstinently
- abstract
- abstracted
- abstractedly
- abstractedness
- abstracter
- abstract expressionism
- abstraction
- abstractional
- abstractionism