castor

/ˈkæstər/
noun
  1. A small wheel attached to the bottom of furniture or equipment to make it easy to move.
    • The hospital bed moves quietly on its rubber castors.
    • She added castors to the bottom of the heavy cabinet.
    • The office chair has a broken castor that won't roll smoothly.
  2. A container with a perforated top used for sprinkling sugar, salt, or other powdered substances.
    • She filled the castor with fine salt for the dinner party.
    • The castor on the table held cinnamon for the coffee.
    • He passed the castor of powdered sugar for the pancakes.
  3. A type of oil obtained from the seeds of the castor bean plant, used in medicine and industry.
    • The factory produces castor oil for cosmetics and lubricants.
    • Castor oil is sometimes used as a natural laxative.
    • They applied castor oil to the leather to keep it soft.
What does "castor" mean? | whatsthatwordmean | whatsthatwordmean