Castile Soap :: Castile soap () A kind of fine, hard, white or mottled soap, made with olive oil and soda; also, a soap made in imitation of the above-described soap..
Soap :: Soap (n.) A substance which dissolves in water, thus forming a lather, and is used as a cleansing agent. Soap is produced by combining fats or oils with alkalies or alkaline earths, usually by boiling, and consists of salts of sodium, potassium, etc., with the fatty acids (oleic, stearic, palmitic, etc.). See the Note below, and cf. Saponification. By extension, any compound of similar composition or properties, whether used as a cleaning agent or not..
Soap :: Soap (v. t.) To rub or wash over with soap.
Soapberry Tree :: Soapberry tree () Any tree of the genus Sapindus, esp. Sapindus saponaria, the fleshy part of whose fruit is used instead of soap in washing linen; -- also called soap tree..
Soaproot :: Soaproot (n.) A perennial herb (Gypsophila Struthium) the root of which is used in Spain as a substitute for soap.
Soapstone :: Soapstone (n.) See Steatite, and Talc..
Soapsuds :: Soapsuds (n. pl.) Suds made with soap.
Soapwort :: Soapwort (n.) A common plant (Saponaria officinalis) of the Pink family; -- so called because its bruised leaves, when agitated in water, produce a lather like that from soap. Called also Bouncing Bet..
Soapy :: Soapy (superl.) Resembling soap; having the qualities of, or feeling like, soap; soft and smooth..
Soapy :: Soapy (superl.) Smeared with soap; covered with soap.