Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The 24th letter of the Greek alphabet. See Table at alphabet.
  • n. The end.
  • n. See omega baryon.
  • n. See omega meson.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The twenty-fourth letter of the Classical and the Modern Greek alphabet, and the twenty-eighth letter of the Old and the Ancient Greek alphabet, i.e. the last letter of every Greek alphabet. Uppercase version: Ω; lowercase: ω.
  • n. The end; the final, last or ultimate in a series.

from the GNU version of the Collaborative International Dictionary of English

  • n. The last letter of the Greek alphabet. See alpha.
  • n. The last; the end; hence, death.

from The Century Dictionary and Cyclopedia

  • n. The last letter of the Greek alphabet (Ω, ω); hence, figuratively, the last of anything.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the last (24th) letter of the Greek alphabet
  • n. the ending of a series or sequence

Etymologies

Middle English, from Greek ō mega, large o (from its being a long vowel in Greek) : ō, the letter o + mega, neuter of megas, large, great; see meg- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English, from Ancient Greek μέγα (mega, "large") (omega is a long vowel in Ancient Greek). (Wiktionary)

Examples

Comments

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  • Ω Chaitin's constant

    January 3, 2009