1. Word Games
  2. Word of the Day
  3. New Words & Slang
  4. Video
 

Castor

12 ENTRIES FOUND:
  1. Castor (noun)
  2. castor (noun)
  3. caster (noun)
  4. castorite (noun)
  5. castor bean (noun)
  6. castor gray (noun)
  7. castor oil (noun)
  8. castor-oil plant (noun)
  9. castor pomace (noun)
  10. castor seed (noun)
  11. castor sugar (noun)
  12. Castor ware (noun)

Cas·tor

noun \ˈkas-tər\

Definition of CASTOR

1
: one of the Dioscuri
2
: the more northern of the two bright stars in Gemini
See Castor defined for kids »

Origin of CASTOR

Latin, from Greek Kastōr
First Known Use: 15th century

Rhymes with CASTOR

aster, blaster, caster, castor, gaster, master, pastor, plaster, raster

Browse

Next Word in the Dictionary: castor bean
Previous Word in the Dictionary: castor
All Words Near: Castor

Seen & Heard

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

Test Your Vocabulary

Take Our 10-Question Quiz

Name That Thing

Take our visual vocab quiz

Test Your Knowledge »

True or False?

A quick quiz about stuff worth knowing

Take It Now »

Join Us on FB & Twitter

Get the Word of the Day and More

Facebook | Twitter

Get Our Free Apps

Voice Search, Favorites,
Word of the Day, and More

iPhone | iPad | Android | More