omega

views updated Jun 27 2018

o·me·ga / ōˈmāgə; ōˈmē-/ • n. the twenty-fourth, and last, letter of the Greek alphabet (Ω, ω), transliterated as ‘o’ or ‘ō.’ ∎  the last of a series; the final development: [as adj.] the omega point. ∎  (Omega) [followed by Latin genitive] Astron. the twenty-fourth star in a constellation: Omega Scorpii.• symb. ∎  (Ω) ohm(s): a 100Ω resistor.

The Oxford Pocket Dictionary of Current English

omega

views updated May 29 2018

omega the last letter of the Greek alphabet (Ω, ω), transliterated as ‘o’ or ‘ō’; figuratively, the last of a series, the final development. (See also alpha and omega.)

The Oxford Dictionary of Phrase and Fable ELIZABETH KNOWLES

omega

views updated May 29 2018

omega last letter of the Gr. alphabet (ω, ω); last of a series, end. XVI. — Gr. ô méga (cf. MEGA-) ‘great o’.

The Concise Oxford Dictionary of English Etymology T. F. HOAD

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