hard soap

(redirected from castile soap)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

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

(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 ?
"Castile soap, whether it's in bar or liquid form, has many fans, especially among consumers who prefer using 'natural' products around the house.
For outdoor windows, use a sponge and wash with warm water with a few drops of liquid castile soap in it.
Bronner's castile soap, and not laundry or dish "soaps," which are actually detergents that contain perfumes and other ingredients that can damage plants.
Castile soap should be first choice for both people and pets.
Shower in hot water and use a soap such as Doc Bronner's castile soap, or another soap designed to remove the oil.
Castile soap. A mild soap available in liquid or bar form that can be used for general-purpose cleaning.
I have a recipe to share for an upholstery cleaner for washable fabric: 3 quarts hot water 2 ounces castile soap, grated 1 tablespoon borax 1/4 cup glycerin 1 gallon jug or bottle
I wash them with castile soap or a mild (3-percent to 5-percent) bleach solution.
Bebe Michele, founded by Michele Varsano and launched in September of 2000, offers Baby Sudz Bath wash, a natural liquid cleanser derived from pure castile soap with lavender and chamomile.
1 ounce liquid castile soap 2 cups water 1 teaspoon vegetable glycerin 5 to 10 drops lavender essential oil (optional, but lavender is antibacterial) Combine the soap and water in a jar.