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omicron

 - 3 dictionary results

om⋅i⋅cron

  [om-i-kron, oh-mi-]
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–noun
1. the 15th letter of the Greek alphabet (O, o).
2. the vowel sound represented by this letter.
Origin:
< Gk ō mikrón, lit., small o. Cf. omega
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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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.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

omicron om·i·cron (ŏm'ĭ-krŏn', ō'mĭ-)
n.

Symbol o The 15th letter of the Greek alphabet.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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