verb (used with object), sa·pon·i·fied, sa·pon·i·fy·ing.
to convert (a fat) into soap by treating with an alkali.
to decompose (any ester), forming the corresponding alcohol and acid or salt.
verb (used without object), sa·pon·i·fied, sa·pon·i·fy·ing.
to become converted into soap.
Origin of saponify
1815–25;Related formssa·pon·i·fi·a·ble, adjectivesa·pon·i·fi·ca·tion, nounsa·pon·i·fi·er, nounnon·sa·pon·i·fi·a·ble, adjectivenon·sa·pon·i·fi·ca·tion, nounun·sa·pon·i·fi·a·ble, adjectiveun·sa·pon·i·fied, adjective
< Latin sāpōn-
(stem of sāpō
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for saponifier
Historical Examples of saponifier
The amount of this to be added depends upon the percentage of saponifier used.
The fatty acids obtained by the Twitchell saponifier may be converted into soap by carbonates, thus saving cost in alkali.
The saponifier is then added through a glass or granite ware funnel after the contents of the tank have been brought to a boil.
British Dictionary definitions for saponifier
verb -fies, -fying or -fied chem
Derived Formssaponifiable, adjectivesaponifier, nounsaponification, noun
to undergo or cause to undergo a process in which a fat is converted into a soap by treatment with alkali
to undergo or cause to undergo a reaction in which an ester is hydrolysed to an acid and an alcohol as a result of treatment with an alkali
Word Origin for saponify
C19: from French saponifier, from Latin sāpō soap
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for saponifier
1821, from French saponifier (see saponification). Related: Saponified; saponifying.
Online Etymology Dictionary, © 2010 Douglas Harper
To undergo saponification.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.