Definition, Meaning & Synonyms

omicron

noun
/ˈoʊ.mɪ.kɒn/
Definition
The 15th letter of the Greek alphabet; it is represented by the symbol ‘O’ and is used in various scientific contexts.
Examples
  • Scientists are closely monitoring the omicron variant for any changes in transmissibility.
  • The WHO classified omicron as a variant of concern due to its rapid spread.
  • Vaccines are being evaluated for their effectiveness against the omicron strain.
Meaning
In recent usage, ‘omicron’ refers to a variant of the SARS-CoV-2 virus, which causes COVID-19. It was first identified in South Africa in late 2021.
Synonyms
  • O
  • 15th letter of the Greek alphabet