• Webster's Revised Unabridged Dictionary
    • n Saponifier (Chem) That which saponifies; any reagent used to cause saponification.
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Century Dictionary and Cyclopedia
    • n saponifier An apparatus for the manufacture of glycerin and the fatty acids, by the decomposition of fats and the isolation of their several constituents.
    • n saponifier A substance that produces saponification, as caustic soda or potash.
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In literature:

It was then necessary to separate the glycerine from the fat by saponifying it.
"The Mysterious Island" by Jules Verne
It does not readily saponify, separates quickly, and it is almost impossible to unite when separated.
"Scientific American Supplement No. 360, November 25, 1882" by Various
This also gives a sulphur reaction when saponified, while it resembles castor oil by its solubility in alcohol.
"Scientific American Supplement, No. 392, July 7, 1883" by Various
The original wool oil was saponified by boiling with alcoholic potash.
"Scientific American Supplement, No. 497, July 11, 1885" by Various
The quantity of potassic hydrate required to saponify one gramme or 15 grains of pure beeswax varies from 97 to 107 milligrammes.
"Scientific American Supplement, No. 443, June 28, 1884" by Various
The chief aim of the refiner is to remove these impurities without saponifying any of the neutral oil.
"The Handbook of Soap Manufacture" by W. H. Simmons
They saponify, you know.
"From Sea to Sea" by Rudyard Kipling
The tallow and grease are first saponified as usual, then the cocoanut oil is pumped and saponified.
"Soap-Making Manual" by E. G. Thomssen
Scaling and peeling due to lack of binder and use of saponifiable oil resulted during the first six months' exposure.
"Paint Technology and Tests" by Henry A. Gardner
It is saponified by alkalies, with reproduction of soluble gum.
"Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6" by Various