omega

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noun ome·ga \ ō-ˈmā-gə , -ˈmē- , -ˈme- \

Definition of omega

1 :the 24th and last letter of the Greek alphabet — see Alphabet Table

2 :the extreme or final part :end

3 a :a negatively charged elementary particle that has a mass 3270 times the mass of an electron — called also omega minus

b :a very short-lived unstable meson with mass 1532 times the mass of an electron — called also omega meson

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Recent Examples of omega from the Web

Rory McIlroy watches his drive on the driving range after becoming an astronaut for an Omega promo at Quail Hollow Club on Monday.

— katherine peralta, charlotteobserver, "Why were Sergio Garcia and Rory McIlroy dressed as astronauts at Quail Hollow?," 8 Aug. 2017
The mix aims to combat adrenal fatigue, increase energy levels, and diminish stress with a combination of Vitamin B, Omega 3’s (derived from anchovy, sardine, and mackerel) and ancient Ayurvedic herbs like bacopa, amla and holy basil.

— jenna rennert, Vogue, "5 New Beauty Supplements That Will Help You Look and Feel Better," 4 Aug. 2017
Salmon has the Omega 3 docosahexaenoic acid, or DHA, which is good for the brain, and eicosapentaenoic acid, or EPA, which supports skin health.

— ann maloney, NOLA.com, "Why you might want to eat salmon every day," 18 July 2017
Available for dry, thinning and oily hair, the beauty-boosting supplements are packed with nourishing ingredients like biotin, omega 3 and silica.

— courtney ortega, star-telegram.com, "Top of the beauty crop," 5 July 2017
Watch for something bigger and more flashily styled, like the Escala concept but still using a version of the Omega platform, to play that role.

— kevin wilson, Car and Driver, "2017 Cadillac CT6," 30 June 2017
Because almonds contain vitamin E and omega 3 fatty acids, its consumption is linked to reducing the risk of heart disease.

— theresa shank, rr, ldn, Philly.com, "Soy, almond, coconut: Which milk alternative is right for you?," 20 June 2017
Think Brain Dust and a spoonful of chia in your morning smoothie to get your Omega 3s.

— ruby warrington, Bon Appetit, "How to Eat Healthyish This Summer According to Astrology," 8 June 2017
Omega also amended a $250 million senior unsecured term loan credit facility and a subsidiary entered into a new $100 million senior unsecured term loan credit facility to replace one of the same size.

— baltimoresun.com, "Omega Healthcare Investors expands in United Kingdom," 1 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'omega.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of omega

Middle English, from Greek ō mega, literally, large o

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First Known Use: 15th century

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OMEGA Defined for English Language Learners

omega

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noun

Definition of omega for English Language Learners

: the 24th and last letter of the Greek alphabet

Medical Dictionary

omega

adjective ome·ga

variants: or ω- \ō-ˈmeg-ə, -ˈmā-gə, esp British ˈō-meg-ə\

medical Definition of omega

:of, relating to, or being a chemical group or position at the end of a molecular chain

omega oxidation of fatty acids

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