omicron

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om·i·cron

 (ŏm′ĭ-krŏn′, ō′mĭ-)
n.
The 15th letter of the Greek alphabet. See Table at alphabet.

[Middle English, from Greek o mīkron, small o (because of its being a short vowel in Greek) : o, the letter o + mīkron, neuter of mīkros, small.]

omicron

(əʊˈmaɪkrɒn; ˈɒmɪkrɒn)
n
(Letters of the Alphabet (Foreign)) the 15th letter in the Greek alphabet (Ο, ο), a short vowel, transliterated as o
[from Greek ō mikron small o; see micro-, omega]

om•i•cron

(ˈɒm ɪˌkrɒn, ˈoʊ mɪ-)

n.
the 15th letter of the Greek alphabet (Ο, ο).
[1450–1500; < Greek ō mikrón. literally, small o. compare omega]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.omicron - the 15th letter of the Greek alphabet
Greek alphabet - the alphabet used by ancient Greeks
alphabetic character, letter of the alphabet, letter - the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters"
Translations