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sigma — meaning in English

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English meaning

  • sigma noun The eighteenth letter of the Greek alphabet (Σ, σ).

Senses

sigma is used for these senses in English:

  • sigma The eighteenth letter of the Classical and Modern Greek alphabets (Σ, σ), the twentieth letter of Old and Ancient.

sigma — full definition

  1. noun The eighteenth letter of the Greek alphabet (Σ, σ).
  2. noun In statistics, the symbol used to represent standard deviation from a mean.
  3. noun Slang for a self-reliant, emotionally detached man who operates outside conventional social hierarchies (a "sigma male").