To convert (an ester) by saponification.
To convert (a fat or oil) into soap.
To undergo saponification.
To subject to saponification; specif., to convert (a fat) into soap by reaction with an alkali.
To undergo conversion to soap.
Origin of saponify
French saponifier Latin sāpō sāpōn- hair dye saponin French -fier -fy