hard soap

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hard soap

a soap made with olive oil, or some other suitable oil or fat, and sodium hydroxide; used as a detergent, and in the form of a suppository or soapsuds enema for constipation; used also as an excipient in pills.
Synonym(s): Castile soap

hard soap

a detergent soap made with olive oil and sodium hydroxide.

hard soap

(hahrd sōp)
One made with olive oil, or some other suitable oil or fat, and sodium hydroxide; used as a detergent, and in the form of a suppository or soapsuds enema for constipation; used also as an excipient in pills.
References in periodicals archive ?
Developed centuries ago in the Castile region of Spain, Castile Soaps are vegetable based and not made from animal fat.
We know our loyal customers will appreciate these Pure Castile Soaps just as much as generations before them did.
Watkins Castile Soaps are now available at a variety of retailers throughout North America, as well as the J.
Watkins Pure Castile Soaps are naturally free from dyes, sulfates and preservatives, never tested on animals and contain no animal byproducts.
The Pure Castile Soaps are designed as multiuse, functioning as a shampoo, body wash, toothpaste, floor/countertop cleaner, stain remover, shaving cream, jewelry cleaner and more.
They will pour abrasive cleansers over their body, soak their hands with disinfectants, lather with harsh soap as copiously as most people will use the mildest of castile soaps.
The store also carries their all natural, custom formulated, Morada Pure Brand of 100% organic liquid castile soaps.
The company plans to launch castile soaps, which are natural soaps made with plant derivatives, in March 2015.
Bronner's presence on store shelves beyond popular castile soaps to include organic lotions, lip balms and tattoo & body balms, and eventually other organic personal care products.