[oh-mee-guh, oh-mey-, oh-meg-uh]

< Greek ō méga literally, great o. Cf. omicron Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To omega
World English Dictionary
omega (ˈəʊmɪɡə)
1.  the 24th and last letter of the Greek alphabet (Ω, ω), a long vowel, transliterated as o or ō
2.  the ending or last of a series
[C16: from Greek ō mega big o; see mega-, omicron]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Word Origin & History

c.1400, from Medieval Gk. omega, final letter of the Gk. alphabet (cf. Rev. i.8), from classical Gk. o mega "big 'o' " (in contrast to o micron "little 'o' "); so called because the vowel was long in ancient Gk.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

omega o·me·ga (ō-měg'ə, ō-mē'gə, ō-mā'-)

Symbol ω, Ω The 24th letter of the Greek alphabet. adj.
Of or characterizing a chemical group or position at the end of a molecular chain, such as omega-oxidation.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
omega   (ō-měg'ə, ō-mē'gə, ō-mā'-)  Pronunciation Key 
  1. An omega baryon.

  2. An omega meson.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Computing Dictionary

Omega definition

1. A prototype-based object-oriented language from Austria.
["Type-Safe Object-Oriented Programming with Prototypes - The Concept of Omega", G. Blaschek, Structured Programming 12:217-225, 1991].
2. A successor to TeX extended to handle the Unicode character set.
The Free On-line Dictionary of Computing, © Denis Howe 2010
Cite This Source
Bible Dictionary

Omega definition

(Rev. 1:8), the last letter in the Greek alphabet. (See A.)

Easton's 1897 Bible Dictionary
Cite This Source
American Heritage
Idioms & Phrases


see alpha and omega.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
Cite This Source
Example sentences
They deprive low income families of the cheapest affordable omega threes available through media scare.
So would fish oil, which is rich in healthful omega fatty acids but has an unpleasant taste.
Also fish oils and the right combination of omega fats.
The effect on this planets wether due to a shift in the moon's orbit will be that of omega proportions.
Idioms & Phrases
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature