Omicron
Omicron (uppercase Ο, lowercase ο, literally "small o" : Όμικρον, o mikron, micron meaning 'small' in contrast to omega) is the 15th letter of the Greek alphabet. In the system of Greek numerals it has a value of 70. It is rarely used in mathematics because it is indistinguishable from the Latin letter O and easily confused with the digit 0. This letter is derived from the Phoenician letter Ayin. In modern Greek, Omicron represents the sound IPA: [ɔ]. Letters that arose from omicron include Roman O and Cyrillic O.
In Unicode the capital letter is codepoint U+039F and the lowercase is U+03BF.
The upper-case letter of omicron (O) was originally used as a symbol for Big O notation, representing the asymptotic rate of growth of a function in mathematics.
In Popular Culture
Omicron is frequently used to designate the thirteenth star in a constellation group, using a combination of magnitude and position. Stars with the omicron designation include Omicron Andromedae, Omicron Ceti, and Omicron Persei, which is well-known due to its use in science fiction, including Star Trek and Futurama.
Translation
The word "Omicron" occurs as such in the following languages: English, Welsh, French, Scottish Gaelic, Latin, Simple English.
Translation(s) in other languages: Alemannic: Ο, Arabic: أوميكرون, Assyrian Neo-Aramaic: Ο, Breton: Omikron (lizherenn), Bulgarian: Омикрон, Catalan: Òmicron, Czech: Omikron, Danish: Omikron, German: Omikron, Greek: Όμικρον, Spanish: Ο, Esperanto: Omikrono, Basque: Omikron, Persian: امیکرون (حرف), Irish: Oimeacrón, Galician: Omicrón, Korean: Ο, Croatian: Omikron, Indonesian: Omikron, Icelandic: Ómíkron, Italian: Omicron (lettera), Hebrew: אומיקרון, Georgian: ომიკრონი (ასო), Haitian: Ο, Kurdish: Omikron, Lithuanian: Omikron (raidė), Hungarian: Omikron, Malay: Omikron, Nahuatl: Ο, Dutch: Omikron, Japanese: Ο, Norwegian (Bokmål): Omikron, Norwegian (Nynorsk): Omikron, Low Saxon: Omikron, Polish: Omikron, Portuguese: Ο, Russian: Омикрон (буква), Slovak: Omikrón, Slovenian: Omikron, Serbo-Croatian: Omikron, Finnish: Omikron, Swedish: Omikron, Thai: โอไมครอน, Turkish: Ο, Ukrainian: Омікрон (літера), Wu: Ο, Cantonese: Ο, Chinese: Ο.
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