omega









omega


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.
  4. omega baryon.
  5. omega meson.

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

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), n.

  1. The 24th letter of the Greek alphabet.

adj.

  1. Of or characterizing a chemical group or position at the end of a molecular chain, such as omega-oxidation.

  1. An omega baryon.
  2. An omega meson.

see alpha and omega.

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