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Raresigmas
The correct spelling is sigmas.
How to pronounce sigmas
noun
Say it like: Sig-mas
The correct spelling is sigmas. The eighteenth letter of the Classical and Modern Greek alphabets, the twentieth letter of Old and Ancient.
Usage Examples
No usage examples in context are available for this word.
Definition
noun
- 1.The eighteenth letter of the Classical and Modern Greek alphabets, the twentieth letter of Old and Ancient.
- 2.The symbol Σ, used to indicate summation of a set or series.
- 3.The symbol σ, used to indicate one standard deviation from the mean, particularly in a normal distribution.
Similar words
Words related in meaning — check their spelling too.