Noun: castile soap
- A good hard soap made from olive oil and sodium hydroxide
"She preferred castile soap for its gentle cleansing properties"
- A region of central Spain; a former kingdom that comprised most of modern Spain and united with Aragon to form Spain in 1479
- Castilla
Type of: district, dominion, soap, territorial dominion, territory
Part of: Espana, Kingdom of Spain, Spain
Encyclopedia: Castile soap
Castile, Philando