ossa

[os-uh]
|

noun

plural of os1.

Nearby words

  1. osphresis,
  2. osphretic,
  3. osprey,
  4. osrd,
  5. oss,
  6. ossature,
  7. ossein,
  8. osselet,
  9. osseo-,
  10. osseocartilaginous

Ossa

[os-uh]

noun

a mountain in E Greece, in Thessaly. 6490 feet (1978 meters).

os

1
[os]

noun, plural os·sa [os-uh] /ˈɒs ə/.

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/.

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/.

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. 2019

Examples from the Web for ossa


British Dictionary definitions for ossa

ossa

noun

the plural of os 2

Ossa

noun

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

osmium

OS

abbreviation for

Old School
Old Style (method of reckoning dates)
Ordinary Seaman
(in Britain) Ordnance Survey
outsize
Old Saxon (language)

os

1

noun plural ossa (ˈɒsə)

anatomy the technical name for bone

Word Origin for os

C16: from Latin: bone; compare Greek osteon

os

2

noun plural ora (ˈɔːrə)

anatomy zoology a mouth or mouthlike part or opening

Word Origin for os

C18: from Latin

os

3

noun plural osar (ˈəʊsɑː)

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

Medicine definitions for ossa

Os

The symbol for the elementosmium

OS

abbr.

oculus sinister (left eye)

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for ossa

Os

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