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Ω

From Wiktionary, the free dictionary

Ω U+03A9, Ω
GREEK CAPITAL LETTER OMEGA
Ψ
[U+03A8]
Greek and Coptic Ϊ
[U+03AA]

Translingual

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Symbol

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Ω

  1. The symbol for ohm, the unit of electrical resistance in the International System of Units.

Usage notes

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  • The Unicode Standard states that Ω (U+2126 OHM SIGN) is included in Unicode only for backward compatibility reasons. Ω (U+03A9 GREEK CAPITAL LETTER OMEGA) is preferred to represent ohms.

Derived terms

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See also

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Ancient Greek

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Etymology

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The most common uppercase form is a variant of omicron (Ο), broken up at the side (), with the edges subsequently turned outward (, , , ). The alternative uppercase form, found in some typefaces, that looks like a larger version of lowercase ω, is from a digraph of two omicrons written close together.

Letter

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Ω (Ō) (uppercase, lowercase ω)

  1. The letter omega (ὦ μέγα), the 24th letter of the ancient Greek alphabet.

See also

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Greek

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Letter

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Ω (O) (uppercase, lowercase ω)

  1. The upper case letter omega (ωμέγα), the last letter of the modern Greek alphabet.

Numeral

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Ω (O)

  1. The number 800 in Greek numerals.
  2. The number 800,000 in Greek numerals.

See also

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see: Appendix:Greek alphabet