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os1 definition

os (ōs)

noun pl. osar o′sar′ (ō′sär′)

esker

Etymology: Swed ås, ridge, pl. åsar < ON āss < IE base *omso-, shoulder > Gr ōmos, L umerus, shoulder

os2 definition

os (äs)

noun pl. ossa os′sa (-ə)

a bone

Etymology: L: see ossify

os3 definition

os (äs)

noun pl. ora o′ra (ō′rə, ôr′ə)

a mouth; opening

Etymology: L: see oral

Os definition

Os

osmium
OS definition

OS

  1. Old Saxon
  2. old series
  3. Old Style
  4. operating system
  5. Ordinary Seaman
  6. out of stock
Also, for OS & , os

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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