omega

Omega is defined as the last of something, particularly the last letter in the Greek alphabet.

(noun)

An example of the omega is the final day on earth.

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See omega in Webster's New World College Dictionary

noun

  1. the twenty-fourth and final letter of the Greek alphabet (Ω, ω): in English transliteration, as in the etymologies of this dictionary, it is shown as ō
  2. the last (of any series); end

Origin: Gr ō + mega, great (see mega-): lit., great (i.e., long) o, to distinguish from o mikron: see omicron

See omega in American Heritage Dictionary 4

noun
  1. The 24th letter of the Greek alphabet. See Table at alphabet.
  2. The end.
  3. See omega baryon.
  4. See omega meson.

Origin:

Origin: Middle English

Origin: , from Greek ō mega, large o (from its being a long vowel in Greek)

Origin: : ō, the letter o

Origin: + mega

Origin: , neuter of megas, large, great; see meg- in Indo-European roots

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