ossa

[os-uh]

Ossa

[os-uh]
noun
  1. a mountain in E Greece, in Thessaly. 6490 feet (1978 meters).

os

1
[os]
noun, plural os·sa [os-uh] /ˈɒs ə/.
  1. Anatomy, Zoology. a bone.

Origin of os

1
Borrowed into English from Latin around 1540–50

os

2
[os]
noun, plural o·ra [awr-uh, ohr-uh] /ˈɔr ə, ˈoʊr ə/.
  1. Anatomy, Zoology. a mouth or orifice of the body.

Origin of os

2
First recorded in 1730–40, os is from the Latin word ōs mouth

os

3
[ohs]
noun, plural o·sar [oh-sahr] /ˈoʊ sɑr/.
  1. Geology. an esker, especially when of great length.

Origin of os

3
< Swedish ås (plural åsar) ridge
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for ossa

Historical Examples of ossa


British Dictionary definitions for ossa

ossa

noun
  1. the plural of os 2

Ossa

noun
  1. a mountain in NE Greece, in E Thessaly: famous in mythology for the attempt of the twin giants, Otus and Ephialtes, to reach heaven by piling Ossa on Olympus and Pelion on Ossa. Height: 1978 m (6489 ft)

Os

the chemical symbol for
  1. osmium

OS

abbreviation for
  1. Old School
  2. Old Style (method of reckoning dates)
  3. Ordinary Seaman
  4. (in Britain) Ordnance Survey
  5. outsize
  6. Old Saxon (language)

os

1
noun plural ossa (ˈɒsə)
  1. anatomy the technical name for bone

Word Origin for os

C16: from Latin: bone; compare Greek osteon

os

2
noun plural ora (ˈɔːrə)
  1. anatomy zoology a mouth or mouthlike part or opening

Word Origin for os

C18: from Latin

os

3
noun plural osar (ˈəʊsɑː)
  1. another name for esker

Word Origin for os

C19 osar (pl), from Swedish ås (sing) ridge
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

ossa in Medicine

Os

  1. The symbol for the elementosmium

OS

abbr.
  1. oculus sinister (left eye)
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

ossa in Science

Os

  1. The symbol for osmium.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.