Run the gasoline into a weighed dish, evaporate the alcohol, dry and weigh the residue as unsaponified matter.
The unsaponified fat of the coccus insect, as well as oleic and margaric acids.
1821, from French saponifier (see saponification). Related: Saponified; saponifying.
saponify sa·pon·i·fy (sə-pŏn'ə-fī')v. sa·pon·i·fied, sa·pon·i·fy·ing, sa·pon·i·fies To undergo saponification.