| 1. | Spanish, Cas⋅ti⋅lla [kahs-tee-lyah, -yah] . a former kingdom comprising most of Spain. |
| 2. | Also called Castile soap. a variety of mild soap, made from olive oil and sodium hydroxide. |
| 3. | any hard soap made from fats and oils, often partly from olive oil. |
| castilla | |
noun | |
| a region of central Spain; a former kingdom that comprised most of modern Spain and united with Aragon to form Spain in 1479 [syn: Castile] |