omicron

IPA: oʊmˈaɪkrɑn

(sometimes capitalized) The 15th letter of the Classical and Modern Greek alphabets (16th in Ancient and Old Greek), used in ordering lists as in naming (astronomy) the 15th star of a constellation or (epidemiology) the 15th discovered major variant of a disease.
(virology, pathology) Ellipsis of Omicron variant. [The highly virulent B.1.1.529 strain of the SARS-CoV-2 virus that causes COVID-19.]
(virology, pathology, uncountable) Ellipsis of Omicron variant. [The highly virulent B.1.1.529 strain of the SARS-CoV-2 virus that causes COVID-19.]
(countable) Alternative form of omicron (Greek letter) (especially in the majuscule form) [(sometimes capitalized) The 15th letter of the Classical and Modern Greek alphabets (16th in Ancient and Old Greek), used in ordering lists as in naming (astronomy) the 15th star of a constellation or (epidemiology) the 15th discovered major variant of a disease.]
Ellipsis of Omicron Hill.; A mountain in North Slope borough, Alaska, United States

Examples of "omicron" in Sentences

In the scanned text should the omicron in o thumas have a rough breathing?
Filioque but never και του Υιου
You know, the weird thing is I looked at that earlier thinking something wasn't right and completely missed that that last vowel was an omicron, not an alpha. heh.
The Thunderbolt who heralded the Silver Age with his 1956 revival had his particles accelerated to the speed of light by blue omicron rays ... but that's another story.
I was paid (through an adult intermediary because of child labor laws) as a technical proofreader for Chemical Abstracts (knowing an o from an omicron AND knowing the molecule in question was a key).
The Greek scholar will look to the Greek letters for Jesus: "iota eta sigma omicron upsilon sigma," which is variously transliterated IHSOYS or IHCOYC, the latter when converted to Latin letters using the common curved sigma variant.
(It's only later, during AC's "Catastrophe For Two Worlds" event, in an attempt to simplify the morass of rationales for superpowers, that the Prof's "primalised matter" is revealed to be none other than the proteanite toxic to Overman, but in an omicron-irradiated form harmless to the Man of the Future.)