Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

castile soap

play
noun, often capitalized C cas·tile soap \(ˌ)kas-ˈtēl-\

Definition of castile soap

  1. :  a fine hard bland soap made from olive oil and sodium hydroxide; also :  any of various similar soaps



Origin and Etymology of castile soap

Middle English castell sope, from Castell Castile


First Known Use: 15th century


Medical Dictionary

castile soap

play
noun cas·tile soap \(ˌ)kas-ˌtēl-\

Medical Definition of castile soap

  1. :  a fine hard bland soap made from olive oil and sodium hydroxide; also :  any of various similar soaps




Seen and Heard

What made you want to look up castile soap? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to make more appealing or attractive

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

august-macke-lady-in-a-green-jacket

Which of these is a synonym of namby-pamby?

insightful insipid energetic lithe
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ