- plural of os1.
- a mountain in E Greece, in Thessaly. 6490 feet (1978 meters).
- Anatomy, Zoology. a bone.
Origin of os1
Borrowed into English from Latin around 1540–50
- Anatomy, Zoology. a mouth or orifice of the body.
Origin of os2
First recorded in 1730–40, os is from the Latin word ōs mouth
- Geology. an esker, especially when of great length.
Origin of os3
< 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
But to-night the Prince was not only alive, but also, Ossa upon Pelion, in a good humor!The Genius
Margaret Horton Potter
What do Pindus and Ossa symbolize, and what exactly does their melting mean?Bussy D'Ambois and The Revenge of Bussy D'Ambois
It had the command of Tempe, and of both the mountains Pelion and Ossa.
On the Pelion of her own misery she heaped the Ossa of self-condemnation.When 'Bear Cat' Went Dry
Charles Neville Buck
Oh, Ossa on Pelion, mount piled on mount, of error and folly!Walt Whitman Yesterday and Today
Henry Eduard Legler
- the plural of os 2
- 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)
- Old School
- Old Style (method of reckoning dates)
- Ordinary Seaman
- (in Britain) Ordnance Survey
- Old Saxon (language)
- anatomy the technical name for bone
C16: from Latin: bone; compare Greek osteon
- anatomy zoology a mouth or mouthlike part or opening
C18: from Latin
- another name for esker
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
- The symbol for the elementosmium
- oculus sinister (left eye)
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- The symbol for osmium.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.