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o·me·ga(ō-mĕg′ə, ō-mē′gə, ō-mā′-)
1. The 24th letter of the Greek alphabet. See Table at alphabet.
2. The last of a series; the end.
3. In cosmology theory, the ratio of the average density of matter in the universe to its critical density.
4. See omega baryon.
5. See omega meson.
Relating to the end of the chain of carbon atoms that is opposite the carboxyl group in the molecule of a fatty acid.
[Middle English, from Greek ō mega, large o (from its being a long vowel in Greek) : ō, the letter o + mega, neuter of megas, large, great; see meg- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Letters of the Alphabet (Foreign)) 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 and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
o•me•ga(oʊˈmi gə, oʊˈmeɪ-, oʊˈmɛg ə)
n., pl. -gas.
1. the 24th and last letter of the Greek alphabet (Ω, ω).
2. the last of any series; the end.
[< Greek ō méga literally, big o. compare omicron]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||omega - the ending of a series or sequence; "the Alpha and the Omega, the first and the last, the beginning and the end"--Revelation|
|2.||omega - the last (24th) letter of the Greek alphabet|
Greek alphabet - the alphabet used by ancient Greeks
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
omega[ˈəʊmɪgə] N → omega f
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
n → Omega nt
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007