noun
: a soap made from either a soda or potash base to which is added a relatively large amount of free fatty acid (as palmitic acid or stearic acid) to decrease the customary alkalinity of the soap and produce a thick lather for shaving
noun
: a soap made from either a soda or potash base to which is added a relatively large amount of free fatty acid (as palmitic acid or stearic acid) to decrease the customary alkalinity of the soap and produce a thick lather for shaving
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012