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omega

[oh-mee-guh, oh-mey-, oh-meg-uh] /oʊˈmi gə, oʊˈmeɪ-, oʊˈmɛg ə/
noun
1.
the 24th and last letter of the Greek alphabet (Ω, ω).
2.
the vowel sound represented by this letter.
3.
the last of any series; the end.
Origin
< Greek ō méga literally, great o. Cf. omicron
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for omegas

omega

/ˈəʊmɪɡə/
noun
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
Word Origin
C16: from Greek ō mega big o; see mega-, omicron
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
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Word Origin and History for omegas

omega

c.1400, from Medieval Greek omega, from classical Greek o mega "big 'o' " (in contrast to o micron "little 'o' "); so called because the vowel was long in ancient Greek. From mega (see mega-). The final letter of the Greek alphabet, hence used figuratively for "the last, final" of anything (cf. Rev. i:8),

Online Etymology Dictionary, © 2010 Douglas Harper
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omegas in Medicine

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

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.
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omegas in Science
omega
  (ō-měg'ə, ō-mē'gə, ō-mā'-)   
  1. An omega baryon.

  2. An omega meson.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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omegas in the Bible

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

Easton's 1897 Bible Dictionary
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Idioms and Phrases with omegas

omega

The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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9
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