omicron

Etymology
From, from , named in contrast with. The uncommon form is similarly borrowed from Latin and Greek. The use for designating stars in a constellation—typically in order of apparent brightness—began with 's 1603 .

Noun

 * 1)  The 15th letter of the Classical and Modern Greek alphabets (16th in Ancient and Old Greek), used in ordering lists as in naming  the 15th star of a constellation or  the 15th discovered major variant of a disease.
 * 2) * 1992 July, Astronomy Now, No. 36, p. 1:
 * ... They include Mira itself (omicron Ceti) which can be seen shortly before dawn.
 * 1) * 2021 November 27, Vimal Patel, "How Omicron, the New Covid-19 Variant, Got Its Name", New York Times:
 * There are now seven “variants of interest” or “variants of concern” and they each have a Greek letter, according to a tracking page. Some other variants with Greek letters do not reach those classification levels, and the W.H.O. also skipped two letters just before Omicron — “Nu” and “Xi” — leading to speculation about whether “Xi” was avoided in deference to the Chinese president,.
 * 1) * 2021 November 27, Vimal Patel, "How Omicron, the New Covid-19 Variant, Got Its Name", New York Times:
 * There are now seven “variants of interest” or “variants of concern” and they each have a Greek letter, according to a tracking page. Some other variants with Greek letters do not reach those classification levels, and the W.H.O. also skipped two letters just before Omicron — “Nu” and “Xi” — leading to speculation about whether “Xi” was avoided in deference to the Chinese president,.

Translations

 * Arabic: أُومِيكْرُون
 * Catalan:
 * Chinese:
 * Mandarin: ,
 * Czech:
 * Dutch:
 * Esperanto:
 * Finnish:
 * French:
 * German:
 * Greek:
 * Ancient: ὂ μικρόν
 * Hungarian:
 * Interlingua: omicron
 * Irish: oimiocrón
 * Italian:
 * Japanese: オミクロン
 * Korean:
 * Malay: omikron
 * Maori: omikorōna
 * Polish:
 * Portuguese: ,
 * Russian:
 * Spanish:
 * Swedish:
 * Thai: โอไมครอน
 * Turkish: omikron

Noun

 * 1)  Greek letter

Usage notes
The plural form omicrons is a product of the 1990 spelling reforms.

Noun

 * 1)  (Greek letter)

Etymology
.

Noun

 * 1)  Greek letter