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

os

11 ENTRIES FOUND:
  1. 1) os (noun)
  2. 2) os (noun)
  3. Os (symbol)
  4. OS (abbreviation)
  5. o (noun)
  6. O (noun)
  7. ora
  8. ossa
  9. OS and D (abbreviation)
  10. double-o (noun)
  11. -o (noun suffix)

1os

noun \ˈäs\
plural os·sa\ˈä-sə\

Definition of OS

: bone

Origin of OS

Latin oss-, os — more at osseous
First Known Use: 15th century

Other Anatomy Terms

bilateral symmetry, carotid, cartilage, dorsal, entrails, prehensile, renal, solar plexus, supine, thoracic, ventral

Rhymes with OS

boss, doss, dross, floss, fosse, gloss, joss, Kos, Maas, pross, stoss, toss

Learn More About OS

Browse

Next Word in the Dictionary: Os
Previous Word in the Dictionary: orzo
All Words Near: os

Seen & Heard

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